Jefferson County, NY Property Records

Tax parcel lookup for Watertown and the Thousand Islands

Jefferson County sits where the North Country meets Lake Ontario and the St. Lawrence River, home to the Thousand Islands region. Watertown, the county seat, is the largest city in the area, with Fort Drum — a major U.S. Army post — also located within the county.

NY Property Peek's dataset includes over 58,000 individual tax parcels across Jefferson County, each with details like year built, square footage, bedroom and bathroom counts, and school district where available — pulled from New York State's statewide tax parcel records.

View the interactive map for Jefferson County →