Jefferson County, New York Cities (2025)

63 cities

City
Rank
2025 Pop.
2020 Pop.
Change
Density
Area (mi²)
Type
Le Ray town125,39425,499-0.47%34573.61 Town
Watertown223,89724,546-0.54%2,6469.03 City
Fort Drum317,13413,0341.66%1,19514.34 CDP
Brownville town45,7365,828-0.45%9758.92 Town
Wilna town55,5245,696-1%7177.98 Town
Watertown town65,4215,833-0.44%15235.69 Town
Adams town74,8484,946-0.64%11542.23 Town
Clayton town84,5684,731-0.95%5582.52 Town
Champion town94,4584,543-0.62%10144.03 Town
Alexandria town103,6603,730-0.6%5072.58 Town
Calcium113,6553,5480.3%6525.61 CDP
Ellisburg town123,2783,339-0.61%3885.22 Town
Carthage133,2303,315-0.52%1,3322.42 Village
Pamelia town143,2243,325-0.74%9534.10 Town
Hounsfield town153,2073,260-0.56%6648.95 Town
Rutland town162,9423,020-0.78%6545.21 Town
Orleans town172,7322,782-0.58%3871.25 Town
Cape Vincent town182,7302,6783.88%4956.28 Town
Theresa town192,5952,640-0.69%4065.12 Town
Lyme town202,2032,285-0.99%3955.87 Town
Philadelphia town211,9231,965-0.57%5137.67 Town
West Carthage221,7451,767-0.23%1,3341.31 Village
Clayton231,6791,733-0.65%1,0481.60 Village
Adams241,6711,688-0.18%1,1561.45 Village
Antwerp town251,6471,679-0.66%16105.96 Town
Henderson town261,4131,435-0.49%3441.18 Town
Sackets Harbor271,3581,372-0.22%5892.31 Village
Great Bend281,2991,3292.36%2245.79 CDP
Black River291,2211,260-0.65%6861.78 Village
Rodman town301,1661,193-0.77%2842.29 Town
Philadelphia311,1351,172-0.61%1,1850.96 Village
Dexter321,0061,011-0.1%1,5110.67 Village
Alexandria Bay33945959-0.32%1,2620.75 Village
Brownville34935945-0.21%1,4980.62 Village
Pamelia Center358964414.92%6401.40 CDP
Lorraine town36892916-0.78%2339 Town
Adams Center378861,000-4.83%1824.86 CDP
Theresa38738760-0.54%5841.26 Village
Cape Vincent39724734-0.28%1,0300.70 Village
Evans Mills40618625-0.16%7560.82 Village
Chaumont41591608-0.51%6010.98 Village
La Fargeville42510733-1.35%1543.31 CDP
Antwerp43509516-0.2%5071 Village
Felts Mills444444510.91%7580.59 CDP
Glen Park454444460%6220.71 Village
Pierrepont Manor464044163.06%5220.77 CDP
Depauville47341224-4.21%359.82 CDP
Mannsville48318322-0.31%3550.90 Village
Belleville493052791.67%4640.66 CDP
Plessis502923703.18%8440.35 CDP
Thousand Island Park512701557.14%9090.30 CDP
Deferiet52253258-0.39%3750.68 Village
Henderson532412360.42%4590.53 CDP
Redwood54229483-9.84%1161.97 CDP
Ellisburg552132150%2131 Village
Rodman562031421.5%1,2770.16 CDP
Worth town57197200-0.51%543.25 Town
Natural Bridge58132228-10.81%1031.28 CDP
Oxbow591201220%2970.40 CDP
Lorraine609955-4.81%2020.49 CDP
Fishers Landing6168767.94%1510.45 CDP
Herrings62411327.89%2660.15 CDP
Three Mile Bay6322182-38.89%780.28 CDP

Jefferson County Cities Summary

Largest City

Le Ray town is the largest city in Jefferson County, with a population of 25,394.

Smallest City

Three Mile Bay is the smallest city in Jefferson County.

10 Largest Cities

There are 63 cities in Jefferson County, New York.

Location of Jefferson County