National Register of Historic Places
Numerous landmarks in Jefferson County are listed on the National Register of Historic Places.
Visit the National Register of Historic Places' official site.
The list of New York State's National Register sites.
Adams[edit | edit source]
Adams Commercial Historic District
Alexandria[edit | edit source]
Densmore Methodist Church of the Thousand Islands
Alexandria Bay[edit | edit source]
Antwerp[edit | edit source]
Village of Antwerp Historic District
Brownville[edit | edit source]
Cape Vincent[edit | edit source]
St. Vincent of Paul Catholic Church
Carthage[edit | edit source]
First Baptist Church and Cook Memorial Building
State Street Historic District
Chaumont[edit | edit source]
Chaumont Grange Hall and Dairymen's League Building
Point Salubrious Historic District
Three Mile Bay Historic District
Union Hall (Chaumont, New York)
Clayton[edit | edit source]
Dexter[edit | edit source]
Evans Mills[edit | edit source]
Fishers Landing[edit | edit source]
Henderson[edit | edit source]
Hounsfield[edit | edit source]
East Hounsfield Christian Church
LeRay[edit | edit source]
LeRaysville Archeological District
Mannsville[edit | edit source]
Orleans[edit | edit source]
Buttermilk Flat Schoolhouse No. 22
Carter Street Schoolhouse No. 21
La Fargeville United Methodist Church
Methodist-Protestant Church at Fisher's Landing
Thousand Island Park Historic District
Oxbow[edit | edit source]
Philadelphia[edit | edit source]
Sterlingville Archeological District
Sackets Harbor[edit | edit source]
Sackets Harbor Village Historic District
Union Hotel (Sackets Harbor, New York)
Stone Mills[edit | edit source]
Three Mile Bay[edit | edit source]
Watertown[edit | edit source]
Jefferson County Courthouse Complex
Roswell P. Flower Memorial Library
Thomas Memorial AME Zion Church
Trinity Episcopal Church and Parish House
Wilna[edit | edit source]