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Jefferson County Map, New York

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Jefferson County, New York

Jefferson Location Map New York

Jefferson County is at the top of New York state, where the St. Lawrence River meets Lake Ontario. It’s a place of islands, lighthouses, and military history. Watertown is the county seat, which buzzes with a mix of urban amenities and small-town feel.

The Thousand Islands region is a paradise for boaters and fishing. Visitors also enjoy the Tug Hill region for hiking and world-class snowmobiling. You can’t talk about Jefferson without mentioning Fort Drum, home to the 10th Mountain Division.

The county has deep ties to the War of 1812. Sackets Harbor is a village on Lake Ontario that played a crucial role in that conflict. The area is known for its excellent cheese with a festival to even prove it.

CategoryDetails
County NameJefferson County
County SeatWatertown
PopulationApproximately 113,000
Cities, Towns, and CommunitiesWatertown, Carthage, Clayton, Alexandria Bay, Adams, Sackets Harbor
Interstates and HighwaysInterstate 81, U.S. Route 11, New York State Route 12, New York State Route 3
FIPS Code36-045
Total Area (Land and Water)1,857 square miles (1,269 sq mi land, 588 sq mi water)
Adjacent Counties (and Direction)St. Lawrence County (Northeast), Lewis County (Southeast), Oswego County (Southwest)
Time ZoneEastern Time Zone (ET)
StateNew York
Coordinates44.0007° N, 75.9983° W
EtymologyNamed after Thomas Jefferson, the third President of the United States
Major LandmarksThousand Islands, Sackets Harbor Battlefield, Boldt Castle, Fort Drum
WebsiteJefferson County Website

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