
Lebanon
- County:
- Grafton County
- County Seat:
- No
- Area (mi²):
- 40.305
- State:
- New Hampshire
Lebanon is a city located in Grafton County, New Hampshire. Lebanon has a 2025 population of 16,038. Lebanon is currently growing at a rate of 2.22% annually and its population has increased by 12.17% since the most recent census, which recorded a population of 14,298 in 2020.
The average household income in Lebanon is $116,787 with a poverty rate of 8.63%. The median age in Lebanon is 38.6 years: 38.6 years for males, and 38.6 years for females.