
Carthage
- County:
- Jefferson County
- County Seat:
- No
- Area (mi²):
- 2.425
- State:
- New York
Carthage is a village located in Jefferson County, New York. Carthage has a 2025 population of 3,230. Carthage is currently declining at a rate of -0.52% annually and its population has decreased by -2.56% since the most recent census, which recorded a population of 3,315 in 2020.
The average household income in Carthage is $68,318 with a poverty rate of 18.61%. The median age in Carthage is 27.8 years: 27.3 years for males, and 30 years for females.