Cities in Lewis County, New York by Population (2024)

There are 21 cities in Lewis County, New York.

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.)

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2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Watertown1New York24,33424,568-0.24%2,6949.03
Lowville2New York3,3563,3320.18%1,7691.90
Carthage3New York3,2843,318-0.24%1,3542.42
Camden4New York2,1192,195-0.89%8702.44
Boonville5New York2,0152,029-0.15%1,1651.73
West Carthage6New York1,7661,7680%1,3501.31
Black River7New York1,2461,262-0.32%7001.78
Great Bend8New York1,0871,329-5.23%1885.79
Pamelia Center9New York742441-1.85%5301.40
Copenhagen10New York6666600.3%5641.18
Croghan11New York6536530%1,5290.43
Lyons Falls12New York6035990.17%6220.97
Port Leyden13New York5895810.34%8840.67
Glen Park14New York4484440.22%6270.71
Castorland15New York3403380.29%1,0090.34
Constableville16New York2952930.34%2611.13
Deferiet17New York2582580%3820.68
Rodman18New York2331429.39%1,4650.16
Turin19New York2152150%2081.03
Natural Bridge20New York130228-15.58%1011.28
Herrings21New York01320%00.15

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 Lewis County, New York?

Watertown is the largest city in Lewis County.

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

Herrings is the smallest city in Lewis County.

How many cities are in Lewis County?

There are 21 cities in Lewis County, New York.

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