
Fenner
- County:
- Madison County
- County Seat:
- No
- Area (mi²):
- 31.047
- State:
- New York
Fenner is located in Madison County, New York. Fenner has a 2025 population of 1,621. Fenner is currently declining at a rate of -0.06% annually and its population has decreased by -1.16% since the most recent census, which recorded a population of 1,640 in 2020.
The average household income in Fenner is $93,185 with a poverty rate of 7.51%. The median age in Fenner is 46.4 years: 48.6 years for males, and 41.5 years for females.