
Old Hill
- County Seat:
- No
- Area (mi²):
- 2.159
- State:
- Connecticut
Old Hill is a CDP located in . Old Hill has a 2025 population of 3,570. Old Hill is currently growing at a rate of 7.14% annually and its population has increased by 11.91% since the most recent census, which recorded a population of 3,190 in 2020.
The average household income in Old Hill is $492,841 with a poverty rate of 2.17%. The median age in Old Hill is 43.9 years: 41.6 years for males, and 46.6 years for females.