22 September 1983
| 249-401 State St., 246-274 State St. and 106-108 Mechanic St., Carthage, New York|
Italianate, Romanesque, Richardsonian
State Street Historic District (Carthage, New York) Wikipedia
State Street Historic District is a national historic district located at Carthage in Jefferson County, New York. The district includes 26 contributing buildings. They are attached brick commercial buildings built between 1860 and 1900 in a variety of styles.
It was listed on the National Register of Historic Places in 1983.