
Gilmanton
- County:
- Belknap County
- County Seat:
- No
- Area (mi²):
- 57.9
- State:
- New Hampshire
Gilmanton is located in Belknap County, New Hampshire. Gilmanton has a 2025 population of 4,183. Gilmanton is currently growing at a rate of 1.33% annually and its population has increased by 5.76% since the most recent census, which recorded a population of 3,955 in 2020.
The average household income in Gilmanton is $118,617 with a poverty rate of 6.93%. The median age in Gilmanton is 46.7 years: 49.8 years for males, and 44.3 years for females.