
Derry
- County:
- Rockingham County
- County Seat:
- No
- Area (mi²):
- 16.024
- State:
- New Hampshire
Derry is a CDP located in Rockingham County, New Hampshire. Derry has a 2025 population of 23,280. Derry is currently growing at a rate of 0.36% annually and its population has increased by 1.7% since the most recent census, which recorded a population of 22,891 in 2020.
The average household income in Derry is $113,297 with a poverty rate of 5.14%. The median age in Derry is 39.7 years: 38.4 years for males, and 40.6 years for females.