
Fitzwilliam
- County:
- Cheshire County
- County Seat:
- No
- Area (mi²):
- 34.635
- State:
- New Hampshire
Fitzwilliam is located in Cheshire County, New Hampshire. Fitzwilliam has a 2025 population of 2,478. Fitzwilliam is currently growing at a rate of 0.57% annually and its population has increased by 5.13% since the most recent census, which recorded a population of 2,357 in 2020.
The average household income in Fitzwilliam is $117,976 with a poverty rate of 8.3%. The median age in Fitzwilliam is 49.5 years: 48.4 years for males, and 56.3 years for females.