County
· New York
Jefferson County
Jefferson County is a county on the northern border of the U.S. state of New York. As of the 2020 census, the population was 116,721. Its county seat is Watertown. The county is named after Thomas Jefferson, third President of the United States of America. It is adjacent to Lake Ontario, southeast from the Canada–US border of Ontario. The county is part of the North Country region of the state.
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Cities and towns 20
- City of Watertown pop. 24,575
- Village of Adams pop. 1,699
- Village of Alexandria Bay pop. 963
- Village of Antwerp pop. 520
- Village of Black River pop. 1,268
- Village of Brownville pop. 951
- Village of Cape Vincent pop. 738
- Village of Carthage pop. 3,330
- Village of Chaumont pop. 613
- Village of Clayton pop. 1,737
- Village of Deferiet pop. 261
- Village of Dexter pop. 1,014
- Village of Ellisburg pop. 215
- Village of Evans Mills pop. 626
- Village of Glen Park pop. 450
- Village of Mannsville pop. 327
- Village of Philadelphia pop. 1,177
- Village of Sackets Harbor pop. 1,383
- Village of Theresa pop. 764
- Village of West Carthage pop. 1,778
Townships 22
- Town of Adams pop. 4,979
- Town of Alexandria pop. 3,754
- Town of Antwerp pop. 1,688
- Town of Brownville pop. 5,862
- Town of Cape Vincent pop. 2,717
- Town of Champion pop. 4,568
- Town of Clayton pop. 4,753
- Town of Ellisburg pop. 3,365
- Town of Henderson pop. 1,446
- Town of Hounsfield pop. 3,289
- Town of Le Ray pop. 25,256
- Town of Lorraine pop. 925
- Town of Lyme pop. 2,299
- Town of Orleans pop. 2,803
- Town of Pamelia pop. 3,336
- Town of Philadelphia pop. 1,974
- Town of Rodman pop. 1,202
- Town of Rutland pop. 3,038
- Town of Theresa pop. 2,666
- Town of Watertown pop. 5,872
- Town of Wilna pop. 5,727
- Town of Worth pop. 201
Reference data (Census of Governments 2022)
- Census ID (PID6)
- 170423
- FIPS state
- 36
- FIPS county
- 045
- FIPS place
- 99045
- Census record name
- COUNTY OF JEFFERSON
- Mailing address
- 195 ARSENAL ST, WATERTOWN 13601