
Harrisburg
- County:
- Lewis County
- County Seat:
- No
- Area (mi²):
- 39.716
- State:
- New York
Harrisburg is located in Lewis County, New York. Harrisburg has a 2025 population of 475. Harrisburg is currently declining at a rate of -0.21% annually and its population has decreased by -0.21% since the most recent census, which recorded a population of 476 in 2020.
The average household income in Harrisburg is $107,204 with a poverty rate of 11.07%. The median age in Harrisburg is 38.5 years: 28.9 years for males, and 47.8 years for females.