City that is listed as a control city on the most freeways

[Interstate Trav]

Los Angeles

US 101 South
I-5 North and South
SR 2 South
I-10 East and West
I-110 and SR 110
SR 14 South
I-15 South and North
I-215 South
SR 60 West
SR 91 West
SR 99 South
US 395 South
SR 86 North
I-805 North
SR 118 East

Las Vegas
I-15 North and South
US 93 and 95
I-515 North
Future I-11 North

Denver

I-70 East and West
I-25 North and South

Limon
I-70 East  (had to throw that in)

[FreewayDan]

Los Angeles

US 101 South
I-5 North and South
SR 2 South
I-10 East and West
I-110 and SR 110
SR 14 South
I-15 South and North
I-215 South
SR 60 West
SR 91 West
SR 99 South
US 395 South
SR 86 North
I-805 North
SR 118 East

Add I-580 East for L.A.

Sacramento:
I-5 North and South
I-405 North
I-210 West
US 101 North (there are signs stating this along sone entries to the Hollywood Freeway)
Route 170 North
I-80 East
I-680 North
Route 99 North and South
US 50 West and East (for Downtown Sacramento)

San Diego:
I-5 South
I-805 North
I-405 South
Route 73 South (via Toll Road)
I-15 South
I-215 South
I-8 West

[Quillz]

It's not a freeway, but a few guide signs on both US-395 and CA-14 say Los Angeles.

[Brandon]

Chicago

I-55N
I-57N
I-65N
I-80E/W
I-88E
I-90E/W
I-94E/W
I-190E
I-290E
IL-394N
US-41N/S
IL-56E
Elgin-O'Hare Expy E

[TheStranger]

Los Angeles

US 101 South
I-5 North and South
SR 2 South
I-10 East and West
I-110 and SR 110
SR 14 South
I-15 South and North
I-215 South
SR 60 West
SR 91 West
SR 99 South
US 395 South
SR 86 North
I-805 North
SR 118 East

Add I-580 East for L.A.

Does Route 1 along the coast west of Santa Monica have Los Angeles as a southbound control city?

Sacramento:
I-5 North and South
I-405 North
I-210 West
US 101 North (there are signs stating this along sone entries to the Hollywood Freeway)
Route 170 North
I-80 East
I-680 North
Route 99 North and South
US 50 West and East (for Downtown Sacramento)

Route 275 east has a sign for "Downtown Sacramento," as well as the start of Business 80 going west from the 80/Business 80 split.

San Diego:
I-5 South
I-805 North
I-405 South
Route 73 South (via Toll Road)
I-15 South
I-215 South
I-8 West

Where is 805 north signed for San Diego?  Does 94 west have any signage for San Diego?

---

San Francisco

280 north
101 north
80 west
580 west
205 west
120 west (near Manteca)
5 south (near Tracy) and north (at the 99/5 split in Wheeler Ridge)
Business 80/50 west (from midtown Sacramento to West Sacramento)
101 north (from Ventura to SF) and 101 south (from about Eureka onwards)
880 north (on the Cypress Freeway towards 80)

[MDOTFanFB]

Detroit

I-75 North and South
I-94 East and West
I-96 East (for "DOWNTOWN Detroit")
M-10 South (shown as "DOWNTOWN" on M-8 west and I-94 east and west and as "Civic-Cobo Ctr" on I-75 north and south)
M-53 South
I-475 Southbound
I-280 (OH) Northbound (accompanied by Toledo)

[FreewayDan]

San Diego:
I-5 South
I-805 North
I-405 South
Route 73 South (via Toll Road)
I-15 South
I-215 South
I-8 West

Where is 805 north signed for San Diego?  Does 94 west have any signage for San Diego?

For northbound 805, its at the junction for Route 905:
https://www.aaroads.com/california/images805/i-805_nb_exit_001b_07.jpg

As for the 94, I don't think San Diego is used for westbound traffic.

[Interstate Trav]

"Does Route 1 along the coast west of Santa Monica have Los Angeles as a southbound control city?
"

No only Santa Monica.   

[roadfro]

Las Vegas
I-15 North and South
US 93 and 95
I-515 North
Future I-11 North

I would note that Las Vegas isn't used as a control city anywhere on I-515 itself, and very rarely along side streets which, due to being older signs, opt for things like "Downtown".

I would also say that future I-11 would not count separately, cause that is essentially US 93 . . . IF I-11 is even embraced as a viable concept such to get the necessary money for upgrading.

[Revive 755]

Chicago

I-55N
I-57N
I-65N
I-80E/W
I-88E
I-90E/W
I-94E/W
I-190E
I-290E
IL-394N
US-41N/S
IL-56E
Elgin-O'Hare Expy E

I-255
I-270 (MO only)
I-280 (IL)
(Edit) I-894 EB

There's probably more out there for Chicago than that

Nomination for runner up:
St. Louis:

1) I-24 (Paducah only? http://maps.google.com/maps?hl=en&ie=UTF8&ll=37.098216,-88.685117&spn=0.025809,0.082397&z=15&layer=c&cbll=37.098257,-88.685005&panoid=NY0HZd2nfS2Y9nSznj5Y9g&cbp=12,292.76,,0,7.48)
2) I-44
3) I-55
4) I-64
5) I-70
6) I-155 in TN:  http://maps.google.com/maps?hl=en&ie=UTF8&ll=36.06825,-89.396353&spn=0.026156,0.082397&z=15&layer=c&cbll=36.068443,-89.39639&panoid=z-boHFrFDMxdir1MuZ-2NQ&cbp=12,2.78,,0,-8.59
7) I-470 (MO)
8  I-435 (http://maps.google.com/maps?hl=en&ie=UTF8&ll=39.20499,-94.497174&spn=0.006269,0.020599&z=17&layer=c&cbll=39.205047,-94.497001&panoid=84AJdGouzns6P8jXdgYGdw&cbp=12,80.77,,0,-7
9) MO 21/Blood Alley Replacement Freeway:  http://maps.google.com/maps?hl=en&ie=UTF8&ll=38.377966,-90.499481&spn=0.006342,0.020599&z=17&layer=c&cbll=38.377774,-90.498691&panoid=4chS2Dr37c7p7DhRRDCkZg&cbp=12,353.92,,0,2.52
10) MO 364 (http://maps.google.com/maps?hl=en&ie=UTF8&ll=38.707097,-90.502195&spn=0.012625,0.041199&z=16&layer=c&cbll=38.707281,-90.50217&panoid=R7--XcKtNjOIG07WMCfkyQ&cbp=12,202.73,,0,4.86)
11) MO 367 (http://maps.google.com/maps?hl=en&ie=UTF8&ll=38.818641,-90.233207&spn=0.003151,0.0103&z=18&layer=c&cbll=38.818688,-90.233414&panoid=q4CHsoHk3j973OXm3hd3mg&cbp=12,155.37,,0,3.03
12) MO 370 http://maps.google.com/maps?hl=en&ie=UTF8&ll=38.79102,-90.453563&spn=0.006305,0.020599&z=17&layer=c&cbll=38.79102,-90.453563&panoid=c3zRQGPOCAaCp0RXlzCWDw&cbp=12,52.03,,0,-1.28

Kansas City should also have a decent number.  Off the top of my head

1) I-270 (MO and IL)
2) I-70
3) I-35
4) I-29
5) US 71

[DTComposer]

You can also add US-101 north for Los Angeles: the beginning of the route from I-5 is signed "Los Angeles/Civic Center."

[Greybear]

Dallas should be listed as well:

I-20 E/W
I-30 E/W
I-35 N/S
I-35E N/S
I-45 N
US 75 S
US 67 N
US 175 W
US 80 W
TX 183 E
TX 114 E

[InterstateNG]

Detroit

I-75 North and South
I-94 East and West
I-96 East (for "DOWNTOWN Detroit")
M-10 South (shown as "DOWNTOWN" on M-8 west and I-94 east and west and as "Civic-Cobo Ctr" on I-75 north and south)
M-53 South

Wow, one more than Lansing.  Impressive.

M-10 has plenty of examples where the control city is Detroit and not some location that merely implies it.

[pianocello]

New York should be on this thread. I've never been there so I can only assume...

I-80 EB
I-78 EB
I-95 NB/SB
I-87 SB
I-495 WB
NY-17 EB

Someone help me out please!

[FreewayDan]

Just remembered three more freeways with L.A. as its control city: I-40 West and Loop 202 (both in Arizona) and Route 71 (Chino Valley Freeway) in Pomona.

[3467]

I am not sure does anyone know about I-39 in WI and Rockford and US 12 in WI have Chicago?
67 and IL 155 should be St Louis but I think they are Alton

Indy has a lot to 74 from Peoria on as well as 65,70 and 69

In terms of 2 dis it would be really hard to beat Chicago and St. Louis

[Interstate Trav]

Thats right, I-40 west, can't belive I forgot that one.  Loop 202 is signs Los Angeles?  Wow secondary next state loop routes list Los Angeles.  

[Interstate Trav]

I am not sure does anyone know about I-39 in WI and Rockford and US 12 in WI have Chicago?
67 and IL 155 should be St Louis but I think they are Alton

Indy has a lot to 74 from Peoria on as well as 65,70 and 69

In terms of 2 dis it would be really hard to beat Chicago and St. Louis

I think Los Angeles might have Chicago beat. 

[ToledoRoadgeek]

For a city of it's size, Toledo has a decent amount: I-75 NB and SB, I-80/90 EB and WB, US 23 SB, US 24 EB, OH 2 WB, I-275 (MI) SB, I-480 WB.  I know Toledo is signed a couple times on I-80/94 in NW Indiana, and I know at one time it was signed on I-80 EB in Joliet.  Not sure if that is still the case.  I'm also pretty sure there's a sign on I-270 in Columbus at the US 23 exit directing Toledo traffic to exit there.  But anyone who makes the drive knows it's faster to go I-71/US 36/US 23 to get north :-).                                                               

[MDOTFanFB]

For a city of it's size, Toledo has a decent amount: I-75 NB and SB, I-80/90 EB and WB, US 23 SB, US 24 EB, OH 2 WB, I-275 (MI) SB, I-480 WB.  I know Toledo is signed a couple times on I-80/94 in NW Indiana, and I know at one time it was signed on I-80 EB in Joliet.  Not sure if that is still the case.  I'm also pretty sure there's a sign on I-270 in Columbus at the US 23 exit directing Toledo traffic to exit there.  But anyone who makes the drive knows it's faster to go I-71/US 36/US 23 to get north :-).                                                               

It also accompanies Detroit on I-280 Northbound.

[triplemultiplex]

I am not sure does anyone know about I-39 in WI and Rockford and US 12 in WI have Chicago?

The 39 SB control city is Madison.  South of Madison, Chicago is used.  But Rockford also makes many appearances.
As for US 12 in Walworth County, I recall Lake Geneva being used as a control city.

[Revive 755]

67 and IL 155 should be St Louis but I think they are Alton

I-155 SB uses Lincoln, but I recall Decatur making an appearance on one of the distance signs; St. Louis doesn't pop up for US 67 until the entrance to the Clark Bridge.

[Greybear]

Dallas is also used as a control city on the following out-of-state highways:

I-20 W in Shreveport
I-30 W in Texarkana
I-35 S in Oklahoma as far north as Oklahoma City
US 69 S in Oklahoma as far north as Checotah
US 75 S in Oklahoma as far north as Henryetta
Indian Nation Turnpike S at Henryetta and McAlester

[thenetwork]

Cleveland:

SR 2: EB from Sandusky/WB from Painesville
SR 5/SR 82: WB From Warren
SR 8: NB from Akron
SR 10: EB from Elyria
US 20: EB from Norwalk
SR 21: NB from Norton
I-71:  NB From Columbus
I-76 (Ohio Turnpike):  WB From PA Tpk.
I-77: NB From Akron
I-80: WB from Youngstown/EB from Toledo
I-90: WB from Erie, PA/EB from Toledo
SR 176: NB From Parma
I-270: From Columbus
I-280: SB From Toledo (Only place you'll ever see a Southbound destination to Cleveland)
I-480: EB & WB from Turnpike
I-680: NB from Youngstown

[iwishiwascanadian]

New York should be on this thread. I've never been there so I can only assume...

I-80 EB
I-78 EB
I-95 NB/SB
I-87 SB
I-495 WB
NY-17 EB

Someone help me out please!

In Connecticut it is signed as a control city on:
I-91 SB south of Hartford (along with New Haven)
I-95 SB
The Wilbur Cross and Merritt Parkways SB (CT-15)