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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City	Rank	State	2024 Population	2020 Census	Annual Change	Density (mi²)	Area (mi²)
Watertown	1	New York	24,334	24,568	-0.24%	2,694	9.03
Lowville	2	New York	3,356	3,332	0.18%	1,769	1.90
Carthage	3	New York	3,284	3,318	-0.24%	1,354	2.42
Camden	4	New York	2,119	2,195	-0.89%	870	2.44
Boonville	5	New York	2,015	2,029	-0.15%	1,165	1.73
West Carthage	6	New York	1,766	1,768	0%	1,350	1.31
Black River	7	New York	1,246	1,262	-0.32%	700	1.78
Great Bend	8	New York	1,087	1,329	-5.23%	188	5.79
Pamelia Center	9	New York	742	441	-1.85%	530	1.40
Copenhagen	10	New York	666	660	0.3%	564	1.18
Croghan	11	New York	653	653	0%	1,529	0.43
Lyons Falls	12	New York	603	599	0.17%	622	0.97
Port Leyden	13	New York	589	581	0.34%	884	0.67
Glen Park	14	New York	448	444	0.22%	627	0.71
Castorland	15	New York	340	338	0.29%	1,009	0.34
Constableville	16	New York	295	293	0.34%	261	1.13
Deferiet	17	New York	258	258	0%	382	0.68
Rodman	18	New York	233	142	9.39%	1,465	0.16
Turin	19	New York	215	215	0%	208	1.03
Natural Bridge	20	New York	130	228	-15.58%	101	1.28
Herrings	21	New York	0	132	0%	0	0.15

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?