
Groton
- County:
- Grafton County
- County Seat:
- No
- Area (mi²):
- 40.696
- State:
- New Hampshire
Groton is located in Grafton County, New Hampshire. Groton has a 2025 population of 578. Groton is currently declining at a rate of -0.17% annually but its population has increased by 2.12% since the most recent census, which recorded a population of 566 in 2020.
The average household income in Groton is $79,429 with a poverty rate of 10.32%. The median age in Groton is 45.4 years: 54.1 years for males, and 44.6 years for females.