US 101 in CA comes close, but misses one county seat out of all the counties it's aligned through. San Benito is the one exception as Hollister, not on the route is it's seat.
US 90 in Florida enters Nassau County where it's seat is no where near it, but enters all other seats of every other Florida County.
US 13 in Delaware does two of the three counties of the state, although at least Sussex County Seat of Government is served by a child of it, US 113.
US 199 at one time in two states hit both of its two counties served in OR and CA.
I have yet found the perfect US Route that serves all state counties it transits. Are there any for real.
US 136 in Missouri hits every county seat on its route. Missouri has about 100 counties. No way does any highway hit them all.
For US highways in Indiana, US 50 comes very close. Of the 8 counties is passes through, it enters the city limits of 7 county seats. The 8th is Jennings County, where it misses Vernon by a few miles.
US 24 also comes close as it hits 7 of 8, missing Rensselaer in Jasper County by several miles.
There are a few state highways which do this.
IN 15 enters the county seat in all four counties.
IN 44 goes 6 for 6.
Probably a couple others I haven't thought of.
US 2 in Michigan (UP) is an all-but-one: It goes through Menominee County, but not the city of Menominee.
In Ohio, US 35 gets 7/7
For a near miss, US 127 gets 8/9, missing Defiance
I thought US 42 would get it too, but my guess was way off (gets 10 of 14). Due to its diagonal nature, it nixes a corner of the counties it misses (Butler, Clark, Union, Wayne)
US 23 has a streak of hitting every county seat from its southern end in the state all the way north to Wyandot (Upper Sandusky), then misses the rest north of there.
So close; thought that I had one ...
US 6 in Pennsylvania crosses 11 counties and goes through 10 county seats. Only Erie County stands in its way.
I-5 has 9/9 in Washington.
I-82 has 3/3 in Washington.
US 195 has 2/2 in Washington.
In MN:
US 53: 2/2
MN 61: 3/3
MN 371 is 3/3 if you include its business route in Brainerd (was 4/4 when it was former US 371 and ended in Bemidji)
In VT:
US 4 2/2
US 7 5/5 (transits both of Bennington County's shire towns)
Quote from: cabiness42 on May 14, 2022, 12:07:05 PM
For US highways in Indiana, US 50 comes very close. Of the 8 counties is passes through, it enters the city limits of 7 county seats. The 8th is Jennings County, where it misses Vernon by a few miles.
US 24 also comes close as it hits 7 of 8, missing Rensselaer in Jasper County by several miles.
There are a few state highways which do this.
IN 15 enters the county seat in all four counties.
IN 44 goes 6 for 6.
Probably a couple others I haven't thought of.
US 27 hits all six of its county seats.
The eastern section of IN 8 hits both of its county seats.
IN 9 almost hits all of its county seats with Bartholomew County's county seat being east of the southern terminus
US-219 almost hits every county seat along its way in West Virginia (Union/Monroe County, Lewisburg/Greenbrier County, Marlinton/Pocahontas County, Elkins/Randolph County and Parsons/Tucker County), but it just barely slips into Preston County before exiting into Maryland. That's almost 200 miles through five counties and a sliver of another, which is fairly unusual for this part of the country.
For that matter, US-219 used to connect another county seat in West Virginia (Princeton/Mercer). That doesn't seem quite fair, since US-219 had to pass through a plug of Giles County, Virginia that extends up into the profile of the West Virginia ridgeline border.
Better say it before someone beats me to it: US-219 hits every county seat along the way in Maryland (Oakland/Garrett County). :pan:
US 19 hits 9/9 county seats along its route in West Virginia: Princeton (Mercer County), Beckley (Raleigh County), Fayetteville (Fayette County), Summersville (Nicholas County), Sutton (Braxton County), Weston (Lewis County), Clarksburg (Harrison County), Fairmont (Marion County), and Morgantown (Monongalia County).
WV 16 hits 9/10: Welch (McDowell County), Pineville (Wyoming County), Beckley (Raleigh County), Fayetteville (Fayette County), Clay (Clay County), Grantsville (Calhoun County), Harrisville (Ritchie County), and St. Marys (Pleasants County). It misses Summersville in Nicholas County.
Utah has three US routes that hit the seat of every county they pass through: US 91 (2/2), US 189 (3/3), and US 491 (1/1). US 89 comes very close (11/12).
US 91 used to be a lot more impressive as it passed through the seat of all 11 Utah counties it entered at its full pre-interstate extent. However, it does still have a claim to fame: it also enters the seat of each county along it in Idaho, meaning it serves the seat of every county along its present route.
Colorado has six US highways:
US84 ends in Pagosa Springs, county seat of Archuleta County. This is the only county in Colorado US84 travels through. (1)
US85 travels through the county seats of Las Animas, Huerfano, Pueblo, El Paso, Douglas, Arapahoe, Denver, Adams, and Weld Counties. (9)
US138 travels through the county seats of Logan and Sedgwick Counties. (2)
US350 travels ends at the county seats of Las Animas and Otero Counties. (2)
US491 travels through the county seats of Montezuma and Dolores Counties. (2)
US550 travels through the county seats of Montrose, Ouray, San Juan, and La Plata Counties. (4)
Quote from: roadman65 on May 14, 2022, 11:11:46 AM
I have yet found the perfect US Route that serves all state counties it transits. Are there any for real.
Somewhat cheating since it's intrastate, but US350 meets this criteria.
Looks like US 36 goes 13/13 in Kansas.
Quote from: Bitmapped on May 16, 2022, 12:32:34 AM
US 19 hits 9/9 county seats along its route in West Virginia: Princeton (Mercer County), Beckley (Raleigh County), Fayetteville (Fayette County), Summersville (Nicholas County), Sutton (Braxton County), Weston (Lewis County), Clarksburg (Harrison County), Fairmont (Marion County), and Morgantown (Monongalia County).
In my lifetime, US-19 has gone through a bunch a changes affecting the county seats in West Virginia.
Before Corridor L was completed, US-19 used to go through Sutton but not Fayetteville (Fayette County). Then in 1971, I-79 was completed from Frametown (Exit 51) to Cern (Exit 62) along with the northern portion of Corridor L. After I-79 opened up from Cern northward to a temporary exit at Gem Road (now WV-5) in 1973, Sutton got completely bypassed with the I-79/US-19 multiplex splitting the difference between Gassaway and Sutton. Once Corridor L was completed across the New River Gorge Bridge, US-19 finally passed through Fayetteville.
The little unincorporated town of Cern was located along (then) US-19/WV-4 at what's now Exit 62 on I-79/US-19. Most of the houses were demolished to make way for the exit. For maybe a decade after Exit 62 was completed, there was still a placename sign for Cern near the northbound exit trumpet. This will always be the Cern exit in my book, so Sutton will forevermore be completely bypassed by US-19. Except...
It now looks like Sutton has annexed some exclave areas that cross both sides of Exit 62. So maybe US-19 really does hit all nine county seats along the way.
Fun fact: The USGS Map used by Topoquest for the Sutton area is not dated, but it shows US-19 multiplexed with I-79 from Exit 57 to Exit 62 and then dropping off onto WV-4 eastward to the edge of downtown Sutton. That was just for a short, almost forgotten timeframe. Thanks for a blast from the past!
Quote from: Bruce on May 14, 2022, 04:03:53 PM
I-5 has 9/9 in Washington.
I-82 has 3/3 in Washington.
US 195 has 2/2 in Washington.
SR 20 has 6/7, unless, you like me consider Burlington and Mt. Vernon to really be the same city.
US 2 is 5/6 in Washington. Completely misses Ephrata.
US 30 in Iowa passes several miles to the south of Benton County's county seat, Vinton, but heading west from there US 30 passes through all 8 county seats in the remaining counties along its route in Iowa. In addition, US 30 goes through the county seats of all 13 counties along its route in Nebraska and all 5 counties along its route in Wyoming before missing the first county seat in Idaho, meaning that US 30 has a streak of 26 consecutive county seats.
Not as impressive but still noteworthy is that US 34 goes through the county seats of all 11 counties along its route in Iowa. Until it was rerouted into Sarpy County, Nebraska on a new Missouri River bridge in 2014, US 34 had a streak of 20 consecutive county seats with all 11 county seats in Iowa and 9 county seats in Nebraska.
Quote from: TEG24601 on May 16, 2022, 04:22:44 PM
US 2 is 5/6 in Washington. Completely misses Ephrata.
US 2 passes through King County as well, so it's 5/7.
Quote from: Bruce on May 16, 2022, 06:51:55 PM
Quote from: TEG24601 on May 16, 2022, 04:22:44 PM
US 2 is 5/6 in Washington. Completely misses Ephrata.
US 2 passes through King County as well, so it's 5/7.
But US 2 misses Seattle, King County's seat.
Quote from: IowaTraveler on May 16, 2022, 05:28:47 PM
US 30 in Iowa passes several miles to the south of Benton County's county seat, Vinton, but heading west from there US 30 passes through all 8 county seats in the remaining counties along its route in Iowa. In addition, US 30 goes through the county seats of all 13 counties along its route in Nebraska and all 5 counties along its route in Wyoming before missing the first county seat in Idaho, meaning that US 30 has a streak of 26 consecutive county seats.
Not as impressive but still noteworthy is that US 34 goes through the county seats of all 11 counties along its route in Iowa. Until it was rerouted into Sarpy County, Nebraska on a new Missouri River bridge in 2014, US 34 had a streak of 20 consecutive county seats with all 11 county seats in Iowa and 9 county seats in Nebraska.
IA 14 serves the seats of all 8 counties it passes through: Charles City (Floyd), Allison (Butler), Grundy Center (Grundy), Marshalltown (Marshall), Newton (Jasper), Knoxville (Marion), Chariton (Lucas), and Corydon (Wayne).
Honorable mentions among north-south roads: US 218 serves county seats in 9 of its 11 counties, missing only New Hampton (Chickasaw) and Washington (Washington). US 61 serves 6 of 7 seats (missing Clinton) but serves both of Lee County's seats, Fort Madison and Keokuk.
And two highways start and end at county seats in consecutive counties. IA 56 connects West Union (Fayette) and Elkader (Clayton), and IA 130 connects Tipton (Cedar) and Davenport (Scott).
There needs to be some more stringent minimum qualifying criteria added to the OP, because SH 56 in Texas transits 2/2 county seats, Grayson (Sherman) and Fannin (Bonham). SH 56 is the old US 82 before it was four-laned on new terrain.
Quote from: oscar on May 16, 2022, 07:11:03 PM
Quote from: Bruce on May 16, 2022, 06:51:55 PM
Quote from: TEG24601 on May 16, 2022, 04:22:44 PM
US 2 is 5/6 in Washington. Completely misses Ephrata.
US 2 passes through King County as well, so it's 5/7.
But US 2 misses Seattle, King County's seat.
Right, that's what he's saying (note that he revised
TEG24601's count from 5/6 to 5/7).
US-35 in West Virginia once hit Pt. Pleasant (Mason County) and Charleston (Kanawha County), but skirted past the county seat for Putnam County on the north side of the Kanawha River. After the Silver Bridge Disaster, it hit Winfield (Putnam County) and still went through Mason and Kanawha counties but on the south side of the river. After US-35 was rerouted over to Scott Depot at the new Exit 40 on I-64, it bypassed Winfield a mile to the west and no longer enters Kanawha County. After recent completion of the four lane US-35 from Ohio, Winfield is completely bypassed and US-35 serves none of its county seats.
Now that US-33 in West Virginia has been rerouted though Ravenswood, it hits Ripley (Jackson County), Spencer (Roane County), Glenville (Gilmer County), Weston (Lewis County), Buckhannon (Upshur County), Elkins (Randolph County) and Franklin (Pendleton County). That makes it 7/8 since it also zips across tiny Calhoun County.
Quote from: SkyPesos on May 14, 2022, 01:23:44 PM
In Ohio, US 35 gets 7/7
For a near miss, US 127 gets 8/9, missing Defiance
I thought US 42 would get it too, but my guess was way off (gets 10 of 14). Due to its diagonal nature, it nixes a corner of the counties it misses (Butler, Clark, Union, Wayne)
US 23 has a streak of hitting every county seat from its southern end in the state all the way north to Wyandot (Upper Sandusky), then misses the rest north of there.
To add to this list....US 68 also hits all county seats out of the 8 counties it passes through.
Findlay (Hancock Co.) - Kenton (Hardin Co.) - Bellefontaine (Logan Co.) - Urbana (Champaign Co.) - Springfield (Clark Co.) - Xenia (Greene Co.) - Wilmington (Clinton Co.) - Georgetown (Brown Co.)
M-21 in Michigan is one that goes through every county seat along it's route. Kent County (Grand Rapids), Ionia County (Ionia), Clinton County (St. Johns), Shiawassee County (Corunna) and Genesee County (Flint).
I-94 also goes through every county seat. St. Clair (Port Huron), Wayne (Detroit), Washtenaw (Ann Arbor), Jackson (Jackson), Calhoun (Marshall), Kalamazoo (Kalamazoo), Van Buren (Paw Paw), Berrien (St. Joseph).
Quote from: Flint1979 on May 17, 2022, 11:07:51 PM
M-21 in Michigan is one that goes through every county seat along it's route. Kent County (Grand Rapids), Ionia County (Ionia), Clinton County (St. Johns), Shiawassee County (Corunna) and Genesee County (Flint).
I-94 also goes through every county seat. St. Clair (Port Huron), Wayne (Detroit), Washtenaw (Ann Arbor), Jackson (Jackson), Calhoun (Marshall), Kalamazoo (Kalamazoo), Van Buren (Paw Paw), Berrien (St. Joseph).
M-21 ends in Grand Rapids Township. The city line at that location is just west of the East Beltline right-of-way.
I-94 also appears to just miss Jackson as well. The city line runs along a section of Boardman Road next to the western US 127 interchange, which is south of I-94. However, the easier disqualifier is that I-94 comes nowhere near the city of St. Joseph; I-94 is about 2 miles away from the city line on M-63, and gets about a mile and a half at the closest to the southern part of the city.
Quote from: bulldog1979 on May 18, 2022, 05:33:30 AM
Quote from: Flint1979 on May 17, 2022, 11:07:51 PM
M-21 in Michigan is one that goes through every county seat along it's route. Kent County (Grand Rapids), Ionia County (Ionia), Clinton County (St. Johns), Shiawassee County (Corunna) and Genesee County (Flint).
I-94 also goes through every county seat. St. Clair (Port Huron), Wayne (Detroit), Washtenaw (Ann Arbor), Jackson (Jackson), Calhoun (Marshall), Kalamazoo (Kalamazoo), Van Buren (Paw Paw), Berrien (St. Joseph).
M-21 ends in Grand Rapids Township. The city line at that location is just west of the East Beltline right-of-way.
I-94 also appears to just miss Jackson as well. The city line runs along a section of Boardman Road next to the western US 127 interchange, which is south of I-94. However, the easier disqualifier is that I-94 comes nowhere near the city of St. Joseph; I-94 is about 2 miles away from the city line on M-63, and gets about a mile and a half at the closest to the southern part of the city.
It's close enough. M-21 indeed serves Grand Rapids and I-94 indeed serves Jackson.
Also I-94 indeed serves St. Joseph.
US-70 hits an amazing 16 of 20 county seats as it meanders across North Carolina: Marshall (Madison County), Asheville (Buncombe County), Marion (McDowell County), Morganton (Burke County), Statesville (Iredell County), Salisbury (Rowan County), Thomasville (Davidson County), Greensboro (Guilford County), Hillsborough (Orange County), Durham (Durham County), Raleigh (Wake County), Smithfield (Johnston County), Goldsboro (Wayne County), Kinston (Lenoir County), New Bern (Craven County) and Beaufort (Carteret County). It barely misses Newton (Catawba County), barely misses Graham (Alamance County) and runs through a sliver of Randolph County and a sliver of Jones County. Historically, US-70 didn't enter either Randolph or Jones counties, making it 16/18.
US-70 also misses Guilford Courthouse (which hasn't been the county seat for many years).
NC-10 (the predecessor of US-70) was also routed through Newton and Graham. Ironically, it didn't hit Marshall but was routed through Bryson City (now US-19). That was 18/19 counties.
The famous Murphy -to- Manteo route (US-64) hits 20 county seats across North Carolina: Murphy (Cherokee County), Hayesville (Clay County), Franklin (Macon County), Brevard (Transylvania County), Hendersonville (Henderson County), Rutherfordton (Rutherford County), Morganton (Burke County), Lenoir (Caldwell County), Taylorsville (Alexander County), Statesville (Iredell County), Mocksville (Davie County), Asheboro (Randolph County), Pittsboro (Chatham County), Raleigh (Wake County), Nashville (Nash County), Tarboro (Edgecombe County), Williamston (Martin County), Plymouth (Washington County), Columbia (Tyrrell County) and Manteo (Dare County). However, it still misses 3 county seats as it skips through Jackson County and Davidson County and just clips Franklin County.
Fun fact: Manteo is the only county seat in North Carolina not on the mainland.
US 85 in SD (Deadwood, Belle Fourche, Buffalo)
I-80 in WY (Evanston, Green River, Rawlins, Laramie, Cheyenne, yes it only goes through 5 counties)
I-25 in WY (Cheyenne, Wheatland, Douglas, Casper, Buffalo)
US 87 in WY (Cheyenne, Wheatland, Douglas, Casper, Buffalo, Sheridan)
I-90 in WY (Sheridan, Buffalo, Gillette, Sundance, yes it only goes through 4 counties)
US 30 in WY (Kemmerer, Green River, Rawlins, Laramie, Cheyenne)
US 85 in WY (Cheyenne, Torrington, Lusk, Newcastle)
Wyoming has a lot of these, having only 23 counties helps I guess.
I-75 in Michigan almost hits every county seat. You have Monroe, Detroit, Pontiac, Flint, Saginaw, Bay City, Standish, West Branch, Roscommon, Grayling, Gaylord, St. Ignace and Sault Ste. Marie. The only two it's missing is Petoskey and Cheboygan. It barely misses a few of the ones I included that it does go through like Pontiac, Saginaw and Bay City but it's honestly close enough.
I-69 doesn't hit all the county seats, it hits Port Huron, Lapeer, Flint, Charlotte, Marshall and Coldwater. It misses St. Johns and Corunna.
I-96 hits Muskegon, Grand Rapids, misses Ionia by about 7 miles, also misses Charlotte and Mason, does hit Howell though, misses Pontiac and hits Detroit.
US-74 hits 17 county seats across North Carolina: Murphy (Cherokee County), Bryson City (Swain County), Sylva (Jackson County), Waynesville (Haywood County), Asheville (Buncombe County), Hendersonville (Henderson County), Columbus (Polk County), Shelby (Cleveland County), Gastonia (Gaston County), Charlotte (Mecklenburg County), Monroe (Union County), Wadesboro (Anson County), Rockingham (Richmond County), Laurinburg (Scotland County), Lumberton (Robeson County), Whiteville (Columbus County) and Wilmington (New Hanover County). Even then, US-74 still misses 3 of them as it passes through Graham County, Rutherford County and Brunswick County.
For Massachusetts, I-91 is the only Interstate in the state that goes through all its county seats excluding 3dis.
Quote from: roadman65 on May 14, 2022, 11:11:46 AM
US 101 in CA comes close, but misses one county seat out of all the counties it's aligned through. San Benito is the one exception as Hollister, not on the route is it's seat.
CASR-99 also misses only Oroville.
Quote from: michravera on May 19, 2022, 03:11:26 PM
Quote from: roadman65 on May 14, 2022, 11:11:46 AM
US 101 in CA comes close, but misses one county seat out of all the counties it's aligned through. San Benito is the one exception as Hollister, not on the route is it's seat.
CASR-99 also misses only Oroville.
I-8, CA-140, and CA-17 all qualify, although none are super impressive with only two counties each. CA-140 also cuts it super close depending on whether its western end is considered to end at the center of the bridge crossing I-5 or at the western end of that bridge. I cannot find any postmile information showing that it has Stanislaus County mileage, so I'll presume it ends in Merced County right at the Merced/Stanislaus County Line.
The longest seems to be CA-82 with three whole counties, and man, it barely qualifies.
US-52 hits six county seats in North Carolina with Mount Airy (Surry County), Winston-Salem (Forysth County), Lexington (Davidson County), Spencer (Salisbury County), Albemarle (Stanly County) and Wadesboro (Anson County), but misses two as it cuts through a sliver of Stokes County and a sliver of Cabarrus County. But it also picks up the fictional county seat of Mount Pilot in the Andy Griffith Show (actual name of the town is Pilot Mountain, also in Surry County). Alas, Mayberry wasn't a county seat in the Andy Griffith Show but it was somehow the location of the Sheriff's Office (and was based on the real town of Mount Airy, which is truly the county seat).
On that same Mayberry theme, US-64 and US-421 go through the fictional county seat of Siler City (which is a real town of that same name, but not the real county seat of Chatham County).
Quote from: Dirt Roads on May 21, 2022, 11:17:30 AM
US-52 hits six county seats in North Carolina with Mount Airy (Surry County), Winston-Salem (Forysth County), Lexington (Davidson County), Spencer (Salisbury County), Albemarle (Stanly County) and Wadesboro (Anson County), but misses two as it cuts through a sliver of Stokes County and a sliver of Cabarrus County. But it also picks up the fictional county seat of Mount Pilot in the Andy Griffith Show (actual name of the town is Pilot Mountain, also in Surry County). Alas, Mayberry wasn't a county seat in the Andy Griffith Show but it was somehow the location of the Sheriff's Office (and was based on the real town of Mount Airy, which is truly the county seat).
Surry County's seat is Dobson (on Bus US 601, not US 52), not Mt. Airy.
Quote from: SkyPesos on May 14, 2022, 01:23:44 PM
For a near miss, US 127 gets 8/9, missing Defiance
US-127 almost continues the tradition into Michigan. Splitting the Hillsdale/Lenawee county line, it misses both Hillsdale and Adrian. Then it hits every seat northward until Roscommon County.
Roll back to the days of US-27 in Michigan (US-127 supplanted it north of Lansing, and I-69 absorbed it south of Lansing), the only county seat it missed was Roscommon.
US-41 looks like it might nail it in Michigan, but Keweenaw (barely) and Alger counties eliminate it.
US-31 in Michigan used to contact every county seat except Antrim. The pedantic out there will note it just barely goes into Cheboygan County (though historically it only rode the county line, and do the ramps to/from I-75 count?). The same pedantic folk will note it barely misses Ludington, and the freeway reroutes around St. Joseph and Benton Harbor turn it into a near miss. But close enough.
I-75, if you're not asking the pedantics, nails every county seat in Michigan except Cheboygan. It comes within 500 yards of touching Gladwin County, but no closer.
Quote from: JREwing78 on May 21, 2022, 02:36:32 PM
US-31 in Michigan used to contact every county seat except Antrim. The pedantic out there will note it just barely goes into Cheboygan County (though historically it only rode the county line, and do the ramps to/from I-75 count?). The same pedantic folk will note it barely misses Ludington, and the freeway reroutes around St. Joseph and Benton Harbor turn it into a near miss. But close enough.
Allegan says hello.
Quote from: JREwing78 on May 21, 2022, 02:36:32 PM
Quote from: SkyPesos on May 14, 2022, 01:23:44 PM
For a near miss, US 127 gets 8/9, missing Defiance
US-127 almost continues the tradition into Michigan. Splitting the Hillsdale/Lenawee county line, it misses both Hillsdale and Adrian. Then it hits every seat northward until Roscommon County.
Roll back to the days of US-27 in Michigan (US-127 supplanted it north of Lansing, and I-69 absorbed it south of Lansing), the only county seat it missed was Roscommon.
US-41 looks like it might nail it in Michigan, but Keweenaw (barely) and Alger counties eliminate it.
US-31 in Michigan used to contact every county seat except Antrim. The pedantic out there will note it just barely goes into Cheboygan County (though historically it only rode the county line, and do the ramps to/from I-75 count?). The same pedantic folk will note it barely misses Ludington, and the freeway reroutes around St. Joseph and Benton Harbor turn it into a near miss. But close enough.
I-75, if you're not asking the pedantics, nails every county seat in Michigan except Cheboygan. It comes within 500 yards of touching Gladwin County, but no closer.
And Emmet County as I mentioned above. US-31 doesn't go through Allegan either as GaryV pointed out. And the ramps to and from I-75 should count since US-31 ends at I-75 not Mackinaw Highway.
Now to Wisconsin. And seriously, the highways in this state take some strange paths. I never would've thought of tying together Withee and Edgerton together with the same route number.
I don't see any routes that cross the state that don't miss at least one county seat along the way. I'm just naming off the seats themselves as it's easier.
US-2:
Hits: Superior, Ashland
Misses: Washburn, Hurley (barely - you could argue for a hit here)
US-8:
Hits: Barron, Ladysmith, Rhinelander, Crandon,
Misses: Balsam Lake, Phillips, Merrill, Marinette
US-10:
Hits: Ellsworth, Durand, Neillsville, Stevens Point, Waupaca, Manitowoc
Misses: Alma, Whitehall, Black River Falls, Wisconsin Rapids, Oshkosh, Chilton,
Hwy 11:
Hits: Monroe, Janesville, Elkhorn, Racine
Misses: Lancaster, Darlington
US-12:
Hits: Hudson, Menomonie, Eau Claire, Black River Falls, Mauston, Baraboo, Madison, Elkhorn
Misses: Neillsville, Sparta, Jefferson, Janesville (just barely touches Rock County),
Hwy 13:
Hits: Washburn, Ashland, Phillips, Medford, Wisconsin Rapids, Friendship,
Misses: Superior (barely), Wausau, Neillsville, Stevens Point, Baraboo
US-14:
Hits: LaCrosse, Viroqua, Richland Center, Madison, Janesville
Misses: Baraboo, Dodgeville, Elkhorn
(WisDOT doesn't acknowledge it ever enters Crawford County)
Hwy 16:
Hits: La Crosse, Sparta, Mauston, Portage, Waukesha, Milwaukee
Misses: Baraboo, Juneau
US-18:
Hits: Prairie du Chein, Dodgeville, Madison, Jefferson, Waukesha, Milwaukee
Misses: Lancaster
Hwy 21:
Hits: Sparta, Wautoma, Oshkosh
Misses: Mauston, Friendship (just barely)
Hwy 22:
Hits: Oconto, Shawano, Waupaca, Wautoma, Montello
Misses: Portage
Hwy 23:
Hits: Darlington, Dodgeville, Montello, Fond du Lac, Sheboygan
Misses: Baraboo, Friendship
Hwy 26:
Hits: Juneau, Jefferson, Janesville
Misses: Oshkosh (though historically it hits), Fond du Lac
Hwy 27:
Hits: Hayward, Ladysmith, Black River Falls, Sparta, Viroqua, Prairie Du Chein
Misses: Superior, Washburn, Chippewa Falls, Eau Claire
Hwy 29:
Hits: Menomonie, Chippewa Falls, Wausau, Shawano, Green Bay, Kewaunee
Misses: Ellsworth, Hudson, Neillsville
Hwy 32:
Hits: Eagle River, Crandon, Green Bay, Chilton, Port Washington, Milwaukee, Racine, Kenosha
Misses: Rhinelander, Oconto, Shawano (for the pedantic), Manitowoc, Sheboygan
Hwy 33:
Hits: La Crosse, Baraboo, Portage, West Bend, Port Washington
Misses: Sparta, Viroqua, Mauston, Juneau (near miss)
Hwy 35:
Hits: Superior, Siren, Hudson, Alma, La Crosse, Prairie du Chein, Lancaster
Misses: Balsam Lake, Ellsworth, Whitehall, Viroqua
I-39:
Hits: Stevens Point, Portage, Madison, Janesville
Misses: Wausau, Wautoma, Montello
US-41 (standalone):
Hits: Marinette, Oconto
US-41/I-41: Green Bay, Appleton, Oshkosh, Fond du Lac, Milwaukee, Kenosha
Misses: Juneau, West Bend, Racine
I-43:
Hits: Green Bay, Manitowoc, Sheboygan, Port Washington, Milwaukee, Elkhorn
Misses: Waukesha, Janesville
US-45:
Hits: Eagle River, Antigo, Oshkosh, Fond du Lac, West Bend, Milwaukee
Misses: Rhinelander, Shawano, Waupaca, Appleton, Waukesha, Racine, Kenosha
US-51:
Hits: Hurley, Merrill, Wausau, Stevens Point, Portage, Madison, Janesville
Misses: Eagle River, Rhinelander, Wautoma, Montello
US-53:
Hits: Superior, Chippewa Falls, Eau Claire, Whitehall, LaCrosse
Misses: Shell Lake, Barron (just barely)
Hwy 57:
Hits: Sturgeon Bay, Green Bay, Chilton, Port Washington, Milwaukee,
Misses: Kewaunee, Manitowoc, Sheboygan
Hwy 60:
Hits: None!
Misses: Prairie du Chein, Richland Center, Baraboo, Portage, Juneau, West Bend, Port Washington
US-61:
Hits: LaCrosse, Viroqua, Lancaster
Misses: Prairie du Chein
US-63:
Hits: Ellsworth, Shell Lake, Hayward,
Misses: Hudson, Balsam Lake, Barron, Washburn, Ashland
Hwy 64:
Hits: Medford, Merrill, Antigo, Marinette
Misses: Hudson, Menomonie, Chippewa Falls, Oconto
Hwy 67:
Hits: Elkhorn,
Misses: Janesville, Waukesha, Juneau, Fond du Lac, Sheboygan, Manitowoc
Hwy 70:
Hits: Siren, Eagle River, Florence
Misses: Shell Lake, Hayward, Phillips, Rhinelander, Crandon
Hwy 73:
Hits: Neillsville, Wisconsin Rapids, Wautoma
Misses: Ladysmith, Medford, Stevens Point (for the pedantic), Montello, Green Lake, Portage, Juneau, Madison
Hwy 80:
Hits: Richland Center
Misses: Wisconsin Rapids, Mauston, Viroqua, Lancaster, Dodgeville, Darlington
I-90:
Hits: LaCrosse, Sparta, Mauston, Madison, Janesville
Misses: Baraboo, Portage
I-94:
Hits: Hudson, Menomonie, Eau Claire, Black River Falls, Madison (barely), Waukesha, Milwaukee, Kenosha
Misses: Whitehall, Sparta, Baraboo, Portage, Jefferson, Racine
US-141:
Hits: Green Bay
Misses: Marinette
(Historic) US-141:
Hits: Green Bay, Manitowoc, Sheboygan, Port Washington, Milwaukee
Misses: Marinette
US-151:
Hits: Dodgeville, Madison, Fond du Lac, Chilton, Manitowoc
Misses: Lancaster, Darlington, Portage, Juneau
Quote from: GaryV on May 21, 2022, 02:42:07 PM
Allegan says hello.
Allegan is definitely a miss for US-31. Good catch!
Quote from: Flint1979 on May 21, 2022, 03:00:17 PMAnd Emmet County as I mentioned above. US-31 doesn't go through Allegan either as GaryV pointed out. And the ramps to and from I-75 should count since US-31 ends at I-75 not Mackinaw Highway.
Took me a minute to figure out what you were talking about with Emmet County.
Emmet County's seat is Petoskey, which US-31 most certainly goes through. US-27 only made the hop onto the Mackinac Bridge for a few years.
I-75 definitely is inside Emmet County for a bit. So that's a miss there.
A breakdown of MN in the style of JR
I-35:
Hits: Albert Lea, Owatonna, Minneapolis/St. Paul, Faribault, Pine City, Duluth
Misses: Shakppee, Hastings, Anoka, Stillwater, Center City, Carlton
I-90:
Hits: Luverne, Worthington, Jackson, Fairmont, Blue Earth, Albert Lea, Austin
Misses: Rochester, Winona
I-94:
Hits: Moorhead, Fergus Falls, Alexandria, St. Cloud (arguable), Minneapolis/St. Paul
Misses: Breckenridge, Elbow Lake, Long Prairie, Buffalo, Stillwater
US 2:
Hits: Duluth, Grand Rapids, Bemidji, Bagley, Crookston
Misses: Aitkin, Walker, Park Rapids
US 8 (historic)
Hits: Center City, Minneapolis
Misses: Anoka, St. Paul
US 10:
Hits: Hastings, St. Paul, Anoka, Elk River, Little Falls, Wadena, Detroit Lakes, Moorhead
Misses: Stillwater, Foley, Long Prairie, Fergus Falls
US 12:
Hits: Minneapolis/St. Paul, Litchfield, Willmar, Benson, Ortonville
Misses: Buffalo, Stillwater
US 14:
Hits: New Ulm, Mankato, Waseca, Owatonna, Rochester, Winona
Misses: Ivanhoe, Marshall, Redwood Falls, St. Peter, Mantorville, Caledonia
US 16:
Hits: Luverne, Worthington, Jackson, Fairmont, Blue Earth, Albert Lea, Austin, Preston
Misses: Caledonia
US 52 (historic):
Hits: Moorhead, Fergus Falls, Alexandria, St. Cloud (arguable), Elk River, Anoka, Minneapolis/St. Paul, Rochester, Preston
Misses: Breckenridge, Elbow Lake, Long Prairie, Buffalo, Hastings, Red Wing
US 59:
Hits: Worthington, Slayton, Marshall, Montevideo, Morris, Elbow Lake, Fergus Falls, Detroit Lakes, Mahnomen, Thief River Falls
Misses: Granite Falls, Madison, Benson, Crookston, Red Lake Falls, Warren, Hallock
US 61 (historic):
Hits: Winona, Red Wing, Hastings, St. Paul, Pine City, Carlton, Duluth, Two Harbors, Grand Marais (the latter three are still on modern MN 61
Misses: Caledonia, Stillwater, Center City
US 63:
Hits: Red Wing, Rochester
Misses: Austin, Preston
US 65 (historic)
Hits: Albert Lea, Owatonna, Faribault, Minneapolis
Misses: Hastings
US 69:
Hits: Albert Lea
Misses: none
US 71:
Hits: Jackson, Windom, Redwood Falls, Olivia, Willmar, Long Prairie, Wadena, Park Rapids, Bemidji, International Falls
Misses: St. Cloud, Grand Rapids
US 75:
Hits: Luverne, Pipestone, Ivanhoe, Madison, Ortonville, Wheaton, Breckenridge, Moorhead, Crookston, Warren, Hallock
Misses: Granite Falls, Ada
US 169:
Hits: Blue Earth, Mankato, St. Peter, Shakopee, Anoka, Elk River, Princeton, Aitkin, Grand Rapids
Misses: Le Center, Minneapolis (historic, arguable today), Brainerd, Duluth
US 212:
Hits: Montevideo, Granite Falls, Olivia, Glencoe, Chaska, Minneapolis (historic, arguable today), St. Paul
Misses: Madison
US 218:
Hits: Austin, Owatonna
Misses: Mantorville
MN 1:
Hits: Warren, Thief River Falls
Misses: Bemidji, Bagley, International Falls, Grand Rapids, Duluth, Two Harbors
MN 11:
Hits: Roseau, Baudette, International Falls
Misses: Hallock
MN 23
Hits: Pipestone, Marshall, Granite Falls, Willmar, St. Cloud, Foley, Mora, Duluth
Misses: Luverne, Ivanhoe, Montevideo, Princeton, Pine City, Carlton
MN 27
Hits: Wheaton, Alexandria, Long Prairie, Little Falls
Misses: Elbow Lake, Princeton, Mora, Aitkin, Carlton
MN 30
Hits: Pipestone, Slayton, St. James, Rochester
Misses: Windom, Mankato, Waseca, Owatonna, Mantorville, Preston
MN 55:
Hits: Elbow Lake, Glenwood, Buffalo, Minneapolis, Hastings
Misses: Breckenridge, Alexandria, Willmar, St. Cloud
MN 60:
Hits: Worthington, Windom, St. James, Mankato, Faribault, Wabasha
Misses: Jackson, Le Center, Red Wing
MN 65
Hits: Minneapolis, Cambridge, Mora
Misses: Anoka, Aitkin, Grand Rapids, International Falls
If we want to exclude roads that are only in one county (or never leave NYC), NY doesn't have a ton of these. But here we go...
I-787: Albany (Albany) and Troy (Rensselaer)
NY 9G: Poughkeepsie (Dutchess) and Hudson (Columbia)
NY 17C: Owego (Tioga) and Binghamton (Broome)
NY 25: Jamaica (Queens), Mineola (Nassau), and Riverhead (Suffolk)
NY 33: Buffalo (Erie), Batavia (Genesee), and Rochester (Monroe)
NY 66: Hudson (Columbia) and Troy (Rensselaer)
I-684 maaaaaaaay qualify. South end is on the border of White Plains (Westchester) and north end is within Carmel town (Putnam), both of which are county seats.
It is possible there are others I'm missing, but there are a lot of near-misses in this state. Several counties have seats which aren't what you would expect. I-190 misses Lockport (Niagara), NY 5 misses Mayville (Chautauqua) and Geneseo (Livingston), NY 32 misses Catskill (Greene) and Ballston Spa (Saratoga), US 9 misses Carmel (Putnam) and Ballston Spa (Saratoga), US 11 misses Oswego (Oswego) and Plattsburgh (Clinton).
Quote from: Dirt Roads on May 21, 2022, 11:17:30 AM
US-52 hits six county seats in North Carolina with Mount Airy (Surry County), Winston-Salem (Forysth County), Lexington (Davidson County), Spencer (Salisbury County), Albemarle (Stanly County) and Wadesboro (Anson County), but misses two as it cuts through a sliver of Stokes County and a sliver of Cabarrus County. But it also picks up the fictional county seat of Mount Pilot in the Andy Griffith Show (actual name of the town is Pilot Mountain, also in Surry County). Alas, Mayberry wasn't a county seat in the Andy Griffith Show but it was somehow the location of the Sheriff's Office (and was based on the real town of Mount Airy, which is truly the county seat).
Quote from: oscar on May 21, 2022, 11:49:45 AM
Surry County's seat is Dobson (on Bus US 601, not US 52), not Mt. Airy.
Oops. I know Dobson well and wasn't thinking. Guess I caught up in Andy Griffith's world while researching US-421 (which didn't warrant posting). I think I'll have another Big Orange.
Fun fact: A close friend of mine passed away last year at age 91. Over the years he was frequently mistaken as Andy Griffith, a problem that increased 100-fold when he moved from Michigan to North Carolina about 20 years ago. After he retired, he started doing a comedy schtick called Almost Andy. As best as he could tell, he was the only Andy Griffith look-a-like.
Quote from: JREwing78 on May 21, 2022, 04:58:36 PM
Quote from: GaryV on May 21, 2022, 02:42:07 PM
Allegan says hello.
Allegan is definitely a miss for US-31. Good catch!
Quote from: Flint1979 on May 21, 2022, 03:00:17 PMAnd Emmet County as I mentioned above. US-31 doesn't go through Allegan either as GaryV pointed out. And the ramps to and from I-75 should count since US-31 ends at I-75 not Mackinaw Highway.
Took me a minute to figure out what you were talking about with Emmet County.
Emmet County's seat is Petoskey, which US-31 most certainly goes through. US-27 only made the hop onto the Mackinac Bridge for a few years.
I-75 definitely is inside Emmet County for a bit. So that's a miss there.
When I said Emmet County I was talking about I-75 not US-31.
West Virginia
Although there's already a bunch posted from West Virginia, it seems appropriate to post the entire list in a modified JREwing78 format. "Wild and Wonderful" West Virginia is also the home of the most "one-hit wonders". Counties are in (parentheses). Near-miss county seats include the courthouse location. Counties where the route barely cuts through a sliver are in ((double parentheses)).
WV-2 (231 miles)
Hits: Huntington (Cabell), Pt. Pleasant (Mason), Parkersburg (Wood), St. Marys (Pleasants), Sistersville (Tyler), New Martinsville (Wetzel), Moundsville (Marshall), Wheeling (Ohio), Wellsville (Brooke), Weirton (Hancock)
Misses: (Jackson)
WV-3 (186 miles)
Hits: Hamlin (Lincoln), Beckley (Raleigh), Hinton (Summers), Union (Monroe)
Misses: (Boone), (Greenbrier)
WV-7 (103 miles)
Hits: Kingwood (Preston), Morgantown (Monongalia), New Martinsville (Wetzel)
Misses: None
WV-10 (145 miles)
Hits: Pineville (Wyoming), Huntington (Cabell)
Misses: (Mercer), (Logan), (Lincoln)
US-11 (26 miles)
Hits: Martinsburg (Berkeley)
Misses: None
WV-16 (253 miles)
Hits: Welch (McDowell), Pineville (Wyoming), Beckley (Raleigh), Fayetteville (Fayette), Clay (Clay), Grantsville (Calhoun), Harrisville (Ritchie), St. Marys (Pleasants)
Misses: None
US-19 (254 miles)
Hits: Princeton (Mercer), Beckley (Raleigh), Fayetteville (Fayette)*, Summersville (Nicholas), Sutton (Braxton)*, Weston (Lewis), Clarksburg (Harrison), Fairmont (Marion), Morgantown (Monongalia)
Misses: None
* Prior to Corridor L, US-19 missed Fayetteville.
** After completion of the northern section of Corridor L, US-19 missed both Sutton and Fayetteville.
*** After Corridor L was fully completed, US-19 hit Fayetteville (but bypassed Sutton).
**** Today, there are exclaves of Sutton annexed on both sides of I-79.
WV-20 (256 miles)
Hits: Princeton (Mercer), Hinton (Summers), Webster Springs (Webster), Buckhannon (Upshur), Clarksburg (Harrison)
Misses: (Greenbrier), (Nicholas), (Wetzel)
US-21 (decommissioned)
Hits: Princeton (Mercer), Beckley (Raleigh), Fayetteville (Fayette), Charleston (Kanawha), Ripley (Jackson), Parkersburg (Wood)
Misses: None
* Bonus: Before the Rockport cuth-through was completed, US-21 was also temporarily routed through Spencer (Roane).
US-22 (6 miles)
Hits: Weirton (Hancock)
Misses: None
WV-28 (151 miles)
Hits: Petersburg (Grant), Moorefield (Hardy), Romney (Hampshire)
Misses: (Pocahontas), (Pendleton), (Mineral)
US-30 (3 miles)
Hits: None
Misses: ((Hancock))
US-33 (248 miles)
Hits: Ripley (Jackson), Spencer (Roane), Glenville (Gilmer), Weston (Lewis), Buckhannon (Upshur), Elkins (Randolph), Franklin (Pendleton)
Misses: (Calhoun), (Barbour)
US-35 (37 miles)
Hits: None
Misses: (Putnam*), Pt. Pleasant* (Mason)
* Bonus: US-35 once hit both Pt. Pleasant and Winfield, but never at the same time.
US-40 (16 miles)
Hits: Wheeling (Ohio)
Misses: None
US-48 (143 miles)
Hits: Moorefield (Hardy), Elkins (Randolph), Buckhannon (Upshur)
Misses: (Grant), Parsons (Tucker)*, (Barbour), Weston (Lewis)**
* Upon completion of Corridor H, US-48 will hit Parsons.
** US-48 misses Weston by stopping just short at I-79, but there is an exclave of Weston east of I-79
US-50 (196 miles)
Hits: Parkersburg (Wood), West Union (Doddridge), Clarksburg (Harrison), Grafton (Taylor), Romney (Hampshire)
Misses: Harrisville (Ritchie), (Preston), (Grant), (Mineral)
US-52 (185 miles*)
Hits: Welch (McDowell), Williamson (Mingo), Huntington (Cabell)
Misses: (Mercer), (Wyoming), (Wayne)**
* Several of these route miles are in Kentucky but maintained by WVDOH.
** Bonus: Previously routed through Wayne (Wayne).
US-60 (178 miles)
Hits: Huntington (Cabell), Charleston (Kanawha), Lewisburg (Greenbrier)
Misses: (Putnam), (Fayette)
I-64 (189 miles)
Hits: Huntington (Cabell), Charleston (Kanawha), Beckley (Raleigh), Lewisburg (Greenbrier)*
Misses: (Putnam), (Fayette), (Summers)
* Upon completion of the eastern section, I-64 originally missed Lewisburg; town has since annexed beyond I-64.
I-70 (14 miles)
Hits: Wheeling (Ohio)
Misses: None
I-77 (187 miles)
Hits: Princeton* (Mercer), Beckley (Raleigh), Charleston (Kanawha), Ripley (Jackson), Parkersburg (Wood)
Misses: (Fayette)
* Upon completion, I-77 originally missed Princeton; town has since annexed beyond the Turnpike.
I-79 (161 miles)
Hits: Charleston (Kanawha), Sutton (Braxton)*, Weston** (Lewis), Clarksburg** (Harrison), Fairmont (Marion), Morgantown** (Monongalia)
Misses: (Roane), (Clay), ((Gilmer))
* I-79 originally bypassed Sutton. Today, there are exclaves of Sutton annexed on both sides of I-79.
** I-79 originally bypassed Weston, Clarksburg and Morgantown; all three have now annexed up to the Interstate.
I-81 (26 miles)
Hits: Martinsburg (Berkeley)
Misses: None
WV-92 (162 miles)
Hits: Elkins (Randolph)
Misses: (Greenbrier), (Pocahontas), (Barbour), (Preston)
US-119 (280 miles)
Hits: Williamson (Mingo), Charleston (Kanawha), Spencer (Roane), Glenville (Gilmer), Weston (Lewis), Buckhannon (Upshur), Philippi (Barbour), Grafton (Taylor), Morgantown (Monongalia)
Misses: Logan* (Logan), (Boone*), ((Lincoln**))
* Double bonus: Prior to completion of Corridor G, US-119 also hit Logan and Madison
** Before completion of Corridor G, US-119 did not enter Lincoln County
US-219* (196 miles)
Hits: Union (Monroe), Lewisburg (Greenbrier), Marlinton (Pocahontas), Elkins (Randolph), Parsons (Tucker)
Misses: ((Preston))
* Bonus: Prior to decommissioning in the counties of Mercer and Giles (Virginia), US-219 also hit Princeton (Mercer)
US-220 (93 miles)
Hits: Franklin (Pendleton), Petersburg (Grant), Moorefield (Hardy), Keyser (Mineral)
Misses: (Hampshire)
US-250 (194 miles)
Hits: Elkins (Randolph), Philippi (Barbour), Fairmont (Marion), Moundsville (Marshall), Wheeling (Ohio)
Misses: (Pocahontas), Grafton (Taylor), (Wetzel)
US-340 (26 miles)
Hits: Charles Town (Jefferson)
Misses: None
US-460 (22 miles)
Hits: Princeton* (Mercer)
Misses: None
* After completion of Corridor Q, US-460 bypassed Princeton; town has since annexed along US-460.
I-470 (4 miles)
Hits: Wheeling (Ohio)
Misses: None
US-522 (19 miles)
Hits: Berkeley Springs (Morgan)
Misses: None
Indiana
I might as well do Indiana, so here it goes with the Interstates and the US Routes.
I-64
Hits: Harrison (passes Corydon on the north), Floyd
Misses: Posey, Vanderburgh, Gibson, Warrick, Dubois, Spencer, Perry, Crawford
I-65
Hits: Clark, Scott, Bartholomew, Johnson, Marion, Lebanon, Tippecanoe, Jasper, Lake
Misses: Jackson, Shelby, Hendricks, Clinton, White, Newton
I-69
Hits: Vanderburgh, Pike (passes Petersburg a mile south of the city), Daviess, Monroe, Morgan, Marion, Madison, Grant, Allen, Delkab, Steuben
Misses: Warrick, Gibson, Greene, Johnson, Hamilton, Delaware, Huntington, Wells
I-70
Hits: Vigo, Marion, Hancock, Henry, Wayne
Misses: Clay, Putnam, Morgan, Hendricks
I-74
Hits: Montgomery, Marion, Shelby, Decatur
Misses: Vermillion, Fountain (passes Covington ~.5 miles south), Boone, Hendricks, Franklin, Ripley, Dearborn
I-80/90
Hits: St. Joseph
Misses: Lake, Porter, La Porte, Elkhart, Lagrange, Steuben
I-94
Hits: none
Misses: Lake, Porter, La Porte
US 6
Hits: none
Misses: Lake, Porter, La Porte, St. Joseph, Marshall, Elkhart, Noble, Dekalb
US 12
Hits: none
Misses: Lake, Porter, La Porte
US 20
Hits: St. Joseph, Lagrange, Steuben
Misses: Lake, Porter, La Porte, Elkhart
US 24
Hits: Newton, White, Cass, Miami, Wabash, Huntington, Allen
Misses: Jasper, Whitley
US 27
Hits: Union, Wayne, Randolph, Jay, Adams, Allen
Misses: none
US 30
Hits: Porter, Marshall, Kosciusko, Whitley, Allen
Misses: Lake, La Porte, Starke
US 31
Hits: Clark, Scott, Bartholomew, Johnson, Marion, Howard, Miami, Fulton, Marshall, St. Joesph
Misses: Jackson, Hamilton, Tipton
US 33
Hits: Adams, Allen, Elkhart
Misses: Whitley, Noble
US 35
Hits: Wayne, Muncie, Howard, Cass, Pulaski, Starke, La Porte
Misses: Randolph, Henry, Grant
US 36
Hits: Parke, Hendricks, Marion
Misses: Vermillion, Putnam, Hancock, Madison, Henry, Randolph
US 40
Hits: Vigo, Clay, Marion, Hancock, Wayne
Misses: Putnam, Hendricks, Henry
US 41
Hits: Vanderburgh, Gibson, Knox, Sullivan, Vigo, Parke, Newton
Misses: Fountain, Warren, Benton, Lake
US 50
Hits: Knox, Daviess, Martin, Lawrence, Jackson, Ripley, Dearborn
Misses: Jennings
US 52
Hits: Newton, Benton, Tippecanoe, Boone, Marion, Rush, Franklin
Misses: Clinton, Hamilton, Hancock, Shelby, Dearborn
US 131
Hits: none
Misses: Elkhart
US 136
Hits: Fountain, Montgomery, Marion
Misses: Vermillion, Warren, Boone, Hendricks
US 150
Hits: Vigo, Sullivan, Knox, Daviess, Martin, Orange, Floyd
Misses: Vermillion, Washington, Harrison
US 224
Hits: Huntington, Adams
Misses: Wells
US 231
Hits: Dubois, Martin, Greene, Owen, Putnam, Montgomery, Tippecanoe, Jasper, Lake
Misses: Spencer, Daviess, White, Porter
US 421
Hits: Jefferson, Ripley, Decatur, Shelby, Marion, Clinton, White
Misses: Hamilton, Boone, Pulaski, Starke, La Porte
Let's do NY in the pretty format:
I-78
Hits: New York (sort of)
I-81
Hits: Broome, Cortland, Onondaga
Misses: Oswego, Jefferson
I-84
Hits: Putnam
Misses: Dutchess, Orange
I-86
Hits: Chemung, Broome
Misses: Chautauqua, Cattaraugus, Allegany, Steuben
I-87
Hits: Bronx (sort of), Albany, Warren, Essex, Clinton
Misses: Westchester, Rockland, Orange, Ulster, Greene, Saratoga
I-88
Hits: None
Misses: Broome, Chenango, Delaware, Otsego, Schoharie, Schenectady
I-90
Hits: Oneida, Herkimer, Albany
Misses: Cattaraugus, Erie, Genesee, Monroe, Ontario, Seneca, Cayuga, Onondaga, Madison, Montgomery, Schenectady, Rensselaer, Columbia
I-95
Hits: New York (sort of), Bronx
Misses: Westchester
I-99
Hits: None
Misses: Steuben
I-190
Hits: Erie
Misses: Niagara
I-390
Hits: Monroe
Misses: Steuben, Livingston
I-490
Hits: Monroe
Misses: Genesee, Ontario
I-590
Hits: Monroe
I-690
Hits: Onondaga
I-790
Hits: Oneida
I-787
Hits: Albany, Rensselaer
I-890
Hits: Schenectady
Misses: Albany
US 1
Hits: New York, Bronx
Misses: Westchester
US 4
Hits: Rensselaer, Washington
Misses: Saratoga
US 6
Hits: Orange, Putnam
Misses: Rockland, Westchester
US 9
Hits: New York, Bronx, Dutchess, Columbia, Albany, Warren, Essex, Clinton
Misses: Westchester, Putnam, Rensselaer, Saratoga
US 9W
Hits: Ulster, Greene, Albany
Misses: Rockland, Orange
US 11
Hits: Broome, Cortland, Onondaga, Jefferson, St Lawrence, Franklin
Misses: Oswego, Clinton
US 15
Misses: Steuben
US 20
Hits: Ontario, Seneca, Cayuga, Albany
Misses: Chautauqua, Erie, Genesee, Livingston, Onondaga, Madison, Oneida, Otsego, Herkimer, Schoharie, Schenectady, Rensselaer
US 44
Hits: Dutchess
Misses: Ulster
US 62
Hits: Erie
Misses: Chautauqua, Niagara
US 202
Hits: Putnam
Misses: Orange, Rockland, Westchester
US 219
Misses: Cattaraugus, Erie
Why not do Utah, too? All interstates and US routes plus a handful of the bigber/longer state highways:
I-15
Hits: Washington, Iron, Beaver, Millard, Juab, Utah, Salt Lake, Davis, Weber, Box Elder (all)
I-70
Hits: Sevier
Misses: Millard, Emery, Grand
I-80
Hits: Salt Lake, Summit
Misses: Tooele
I-84
Hits: Box Elder, Weber, Morgan
Misses: Davis, Summit
I-215
Hits: Salt Lake
Misses: Davis
US 6
Hits: Carbon
Misses: Millard, Juab, Utah, Wasatch, Emery, Grand
US 40
Hits: Wasatch, Duchesne, Uintah
Misses: Summit
US 50
Misses: Millard, Sevier, Emery, Grand
US 89
Hits: Kane, Garfield, Piute, Sevier, Sanpete, Utah, Salt Lake, Davis, Weber, Box Elder, Cache
Misses: Rich
US 91
Hits: Box Elder, Cache
US 163
Misses: San Juan
US 189
Hits: Utah, Wasatch, Summit
US 191
Hits: San Juan, Grand, Carbon, Duchesne, Uintah
Misses: Emery, Daggett
US 491
Hits: San Juan
SR 10
Hits: Emery, Carbon
Misses: Sevier
SR 12
Misses: Garfield, Wayne
SR 21
Hits: Beaver
Misses: Millard
SR 24
Hits: Wayne
Misses: Sevier, Piute, Emery
SR 30
Hits: Cache
Misses: Box Elder, Rich
SR 36
Hits: Tooele
Misses: Juab
Illinois 71 is kind of a cheap one, only passing through three counties, but it counts. Add 100 to get another cheap qualifier, Illinois 171, which only passes through two counties. Joliet and Chicago are all it needs to connect to, and it does.
I thought Illinois 146 would fit the bill for sure, but the western end joins Illinois 3 south into Alexander County...its clip of Alexander County's northwest corner invalidates it because it doesn't meet Cairo.
CT doesn't have county seats, but if they did, the seats would be the namesakes for Hartford, New Haven, Litchfield, and New London. The others would be Bridgeport (Fairfield), Middletown (Middlesex), Vernon/Rockville (Tolland), and Windham/Willimantic (Windham). For interstates:
84: Misses Fairfield, New Haven, and (for the 2 miles it spends there) Windham. Hits Hartford and Tolland
91: Hits all 3. New Haven, Middlesex (barely), and Hartford.
95: Hits 3 of 4 (Fairfield, New Haven, New London). Misses Middlesex
291: Misses Hartford
384: Misses Hartford and Tolland
395: Barely missed New London. Misses Windham
684: Really?!?
691: Misses both New Haven and Hartford
US ROUTES
1: See I-95
5: Hits both New Haven and Hartford (barely)
6: Hits Hartford, and the town of Windham (but not Willimantic proper anymore). Misses Fairfield, New Haven, Litchfield, and Tolland.
7: Missed both Fairfield and Litchfield
44: Hits Hartford. Misses Litchfield, Tolland, and Windham
202: Hits Litchfield. Misses Fairfield and Hartford.