
Windham
- County:
- Rockingham County
- County Seat:
- No
- Area (mi²):
- 26.744
- State:
- New Hampshire
Windham is located in Rockingham County, New Hampshire. Windham has a 2025 population of 16,086. Windham is currently declining at a rate of 0% annually and its population has increased by 1.58% since the most recent census, which recorded a population of 15,836 in 2020.
The average household income in Windham is $224,990 with a poverty rate of 2.21%. The median age in Windham is 42.7 years: 40.5 years for males, and 43.6 years for females.