
Lyman
- County:
- Grafton County
- County Seat:
- No
- Area (mi²):
- 28.388
- State:
- New Hampshire
Lyman is located in Grafton County, New Hampshire. Lyman has a 2025 population of 579. Lyman is currently declining at a rate of -0.86% annually and its population has decreased by -1.36% since the most recent census, which recorded a population of 587 in 2020.
The average household income in Lyman is $91,194 with a poverty rate of 10.68%. The median age in Lyman is 56.5 years: 56.5 years for males, and 56.5 years for females.