Jefferson County
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AI overview
Jefferson County is a county located in New York State in the United States. It is notable as one of New York's geographic and administrative divisions, serving as a local government area for its residents.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Country
- United States
- State
- New York
- Named after
- Thomas Jefferson
- Seat
- Watertown
- Largest town
- Le Ray
- Total
- 1,857 sq mi (4,810 km )
- Land
- 1,269 sq mi (3,290 km )
- Water
- 589 sq mi (1,530 km ) 32%
- Estimate 2025
- 111,540
- Density
- 63/sq mi (24/km )
- Time zone
- UTC−5 ( Eastern )
- Summer dst
- UTC−4 ( EDT )
- Congressional districts
Article
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.
Jefferson County comprises the Watertown-Fort Drum, NY Metropolitan Statistical Area. The popularity of the area as a summer tourist destination results in a dramatic increase of population during that season.