Sullivan County, New York Cities (2024)

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

City
Rank
2024 Pop.
2020 Pop.
Change
Density (/mi²)
Area (mi²)
Type
Thompson116,61516,551-0.36%19884.1Town
Fallsburg215,00414,0511.29%19377.6Town
Mamakating312,60612,645-0.44%13196.1Town
Liberty410,38110,1610.04%13079.6Town
Monticello57,2157,237-0.08%1,7684.1Village
Liberty65,1655,0230.68%1,9712.6Village
Bethel74,2363,9523.19%5085.3Town
Neversink83,3453,369-0.68%4082.8Town
Rockland93,3293,285-0.03%3594.2Town
Callicoon103,0562,9920.33%6348.6Town
Lumberland112,3072,2430.83%5046.5Town
Delaware122,1872,198-0.5%6334.9Town
Cochecton131,4341,445-0.56%4036.3Town
Tusten141,4301,4050.07%3047.2Town
Fremont151,1431,156-0.69%2350.2Town
Wurtsboro161,0741,085-0.28%8601.2Village
Bloomingburg17978984-0.2%1,4220.7Village
Woodridge187117100%4251.7Village
Jeffersonville193923920%9610.4Village

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in Sullivan County, New York?

Thompson is the largest city in Sullivan County.

What is the smallest city in Sullivan County, New York?

Jeffersonville is the smallest city in Sullivan County.

How many cities are in Sullivan County?

There are 19 cities in Sullivan County, New York.

Frequently Asked Questions