THE BELKNAP COUNTY LAND BRIEF
Land in the
Sebago-Ossipee Hills and Plains setting.
Belknap County has 401.9 square miles of land in New Hampshire. 4 mapped landscape regions meet across Belknap County: Sebago-Ossipee Hills and Plains, Worcester/Monadnock Plateau, Sunapee Uplands, among others.
Forested hills and mountains span northern New England, the Adirondacks and higher Catskills. Glacial lakes and steep streams accompany a transition between northern hardwood and spruce-fir forests.
Regional context: Northeastern Highlands ↗ · Regional mapping across the county footprint
Where the landscape changes
Belknap County intersects 4 mapped regional units. The largest mapped shares are:
- Sebago-Ossipee Hills and Plains50%
- Worcester/Monadnock Plateau35.8%
- Sunapee Uplands13.7%
- White Mountain Foothills0.5%
Finding your parcel within Belknap County
The atlas lists 16 cities, towns, townships, and Census communities associated with Belknap County, including Alton, Gilmanton, Sanbornton. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Belknap County by land and water
The Census records 68.1 square miles of water within Belknap County, or 14.5% of its total area. That share is close to Belknap County’s 14.5%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Belknap County has 10.4 times the land area of nearby Gilford town (38.8 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Carroll County, Grafton County, Merrimack County, Strafford County within New Hampshire. A tract near one of these lines should be matched to the county identifier on its own records.

