
Summerhill
- County:
- Cayuga County
- County Seat:
- No
- Area (mi²):
- 25.864
- State:
- New York
Summerhill is located in Cayuga County, New York. Summerhill has a 2025 population of 1,065. Summerhill is currently declining at a rate of -0.93% annually and its population has decreased by -4.23% since the most recent census, which recorded a population of 1,112 in 2020.
The average household income in Summerhill is $114,169 with a poverty rate of 16.05%. The median age in Summerhill is 51 years: 49.1 years for males, and 55.1 years for females.