Municipalities/cities in your area with no numbered highways.

[Roadgeekteen]

Dover, Massachusetts (unless MA 109 enters town).

[jon daly]

Dover, Massachusetts (unless MA 109 enters town).

Whatever the name of the town on Block Island is.

moto e5 play

[TheStranger]

Clayton, California (southeast of Concord) would have been on the planned Route 24 extension from Walnut Creek to Pittsburg, but as that is never being built, no numbered roads pass through town.

Moraga would have been in a similar situation - the planned junction of Route 77 and Route 93 would have been in that city, and neither will be built to that extent (93 corridor pretty much all unnumbered arterials or the Richmond Parkway expressway, 77 limited to a short freeway spur off I-880 in East Oakland).

[Bruce]

See this thread and its parent: https://www.aaroads.com/forum/index.php?topic=24011

[skluth]

There are quite a few in the LA/Inland Empire region

Palos Verdes Estates
Rolling Hills Estates (better known for the recent Tiger Woods car accident)
Huntington Park
Sierra Madre
Cherry Valley

This doesn't include Caltrans habit of decommissioning or not signing routes through municipalities.

[NWI_Irish96]

I have seen versions of the West Lafayette (50,996) boundaries that have it both just clipping and just missing US 52.
Griffith (16,893) has NB lanes only of IN 912.
Speedway (11,812) has NB lanes only of I-65.

The largest town in Indiana that very clearly has no highway miles is Winona Lake (4,908).

[-- US 175 --]

For TX (so far) I came up with:
- Addison
- Cockrell Hill
- Hackberry
- Windsong Ranch

[CoreySamson]

A couple Houston suburbs qualify, I believe.

Aldine (15,869) The Hardy Toll Road runs through it, but that doesn't have a number. It is debatable whether its northern border lies on or just close to the Beltway 8 frontage road, though.
Sienna Plantation (13,721) Its border might extend all the way up to FM 521's ROW, but it doesn't cross the pavement.

The closest I can find for Louisiana would be Shenandoah, a suburb of Baton Rouge which has 18,399 people, but LA 73 barely clips its SW corner.

[hotdogPi]

It is debatable whether its northern border lies on or just close to the Beltway 8 frontage road, though.

You might not know, and it might be hard to find out, but I'm pretty sure it's not debatable (it's not factually ambiguous).

[webny99]

Below is some discussion from the previous thread that's basically a much more detailed version of what I was going to say regarding New York. In short, there's not many good candidates. Almost every town (or "township", as they're called elsewhere) and village with significant population is on the state highway system in some capacity.

The closest candidate I can think of is Gananda, which has a population of around 6,000, but that's a community, not a town or village, and even then, you could argue that NY 441 and NY 350 enter the "boundaries" of the community.

Long Beach has none, partially because it is relatively isolated from the state road network and has no limited-access highways.

The remaining few New York has (at least that I can think of) are much smaller than anything already listed. Every portion of the state is incorporated as a town, village, or city (villages are incorporated on top of towns) and even the unincorporated hamlets (unincorporated as in not a city or village) of any decent size typically have a state highway.

True if we're talking population, but if we're looking at area then any state with civil towns/townships is likely to have numerous contenders (New York included). Of course, while these are municipalities, they are arguably not incorporated places (not "incorporated" by NY terminology, and not "places" by Census terminology).

Besides towns, in NY there are numerous incorporated villages, particularly on Long Island, that have no state roads whatsoever. Most of these have small populations, but some have extensive areas (Lloyd Harbor, for example). The most populous I can find offhand is Garden City, at about 22,000.

[Max Rockatansky]

Sanger, Reedley and San Joaquin off the top of my head near Fresno. 

[webny99]

It is debatable whether its northern border lies on or just close to the Beltway 8 frontage road, though.

You might not know, and it might be hard to find out, but I'm pretty sure it's not debatable (it's not factually ambiguous).

If the Aldine border is indeed right on the eastbound frontage road, as it appears to be, then it would be debatable whether that means Beltway 8 "enters" the CDP or not.

[ftballfan]

A lot of incorporated villages in my home area of Michigan have no state highway mileage:
Have never had any state highway mileage
Fountain
Free Soil
Hersey
Kaleva
Lake Ann
Lake Isabella
McBride
Ravenna
Thompsonville
Walkerville

Had state highway mileage at one point, but doesn't currently (the route (or routes) that used to enter are in parentheses)
Cedar Springs (US-131, M-46, M-57)
Fruitport (US-16)
Howard City (US-131, M-46, M-82)
LeRoy (US-131)
Luther (M-63)
Morley (US-131)
New Era (US-31)
Pierson (US-131, M-46)
Rockford (US-131)
Rothbury (US-31)
Sand Lake (US-131, M-46)
Shelby (US-31)
Stanwood (US-131)
Tustin (M-61)

Among larger communities, East Grand Rapids (population 10,694) has no numbered highways.

[epzik8]

Delta, Pennsylvania

[SectorZ]

In Massachusetts, the following towns do not have a numbered highway

Aquinnah
Chilmark
Edgartown
Gosnold
Hampden
Leyden
Middlefield
Monroe
Mount Washington
Nahant
Nantucket
Oak Bluffs
Rowe
Tisbury
Tyrinhgam
West Tisbury

RGT, Dover does have a bit of 109 going thru it, https://goo.gl/maps/EqKc2azriPyaEdvs8

(The list above was created by me when trying to clinch all the cycling-legal roads in the state - hence I had it handy and deleted off the towns, like Berkley, that have freeways but no non-freeway numbered routes)

[JayhawkCO]

I believe the only in Colorado are:

Bonanza
Bow Mar
Coal Creek
Crestone
Grover
Hartman
Jamestown
Marble
Ophir
Paonia
Pitkin
Rockvale
Williamsburg

Chris