Cities in St. Lawrence County, New York by Population (2024)

There are 34 cities in St. Lawrence 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)
Massena	1	New York	10,082	10,234	-0.38%	2,226	4.53
Potsdam	2	New York	8,644	8,472	0.5%	1,758	4.92
Ogdensburg	3	New York	8,590	10,068	-4.12%	1,733	4.96
Canton	4	New York	7,026	7,364	-1.18%	1,695	4.14
Akwesasne	5	New York	4,397	3,995	2.35%	106	41.61
Gouverneur	6	New York	3,673	3,619	0.38%	1,676	2.19
Tupper Lake	7	New York	3,325	3,375	-0.36%	1,590	2.09
Norwood	8	New York	1,542	1,566	-0.39%	736	2.10
Fort Covington	9	New York	1,104	1,390	-4.25%	57	19.35
Long Lake	10	New York	958	374	17.98%	102	9.35
Waddington	11	New York	940	936	0.11%	431	2.18
Hannawa Falls	12	New York	868	1,040	-1.36%	169	5.13
Norfolk	13	New York	852	886	-0.93%	315	2.70
Madrid	14	New York	839	805	1.08%	225	3.73
Theresa	15	New York	754	760	-0.13%	597	1.26
Star Lake	16	New York	747	540	7.02%	172	4.34
Heuvelton	17	New York	721	717	0.14%	947	0.76
Parishville	18	New York	671	623	1.82%	204	3.29
Edwards	19	New York	650	430	9.24%	703	0.93
DeKalb Junction	20	New York	559	535	-7.14%	140	3.98
Antwerp	21	New York	514	518	-0.19%	512	1
Hailesboro	22	New York	483	776	-12.97%	103	4.70
Hermon	23	New York	477	387	0%	970	0.49
Brasher Falls	24	New York	415	605	-10.17%	253	1.64
Redwood	25	New York	324	483	3.19%	165	1.97
Rensselaer Falls	26	New York	319	321	0%	1,096	0.29
Winthrop	27	New York	296	174	11.7%	107	2.78
Hammond	28	New York	287	285	0.35%	490	0.59
Richville	29	New York	260	266	-0.38%	352	0.74
Colton	30	New York	258	290	-3.01%	156	1.66
St. Regis Falls	31	New York	218	352	-13.15%	169	1.29
Plessis	32	New York	196	370	-15.15%	566	0.35
Cranberry Lake	33	New York	122	126	-0.81%	6	19.42
Oxbow	34	New York	114	122	-1.72%	282	0.40

showing: 34 rows

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 St. Lawrence County, New York?

Massena is the largest city in St. Lawrence County.

What is the smallest city in St. Lawrence County, New York?

Oxbow is the smallest city in St. Lawrence County.

How many cities are in St. Lawrence County?