THE GRANTHAM LAND BRIEF
Land in the
Sunapee Uplands setting.
Grantham town has 27.2 square miles of land in Sullivan County. Its Census reference point is in Sunapee Uplands, within Northeastern Highlands.
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 ↗ · Classification at the Census reference point
Grantham and Sullivan County
Grantham is associated with Sullivan County in the Census boundary data. Start with the parcel’s tax bill to match the property to that jurisdiction, then confirm which government handles its land use.
Grantham by land and water
The Census records 0.83 square miles of water within Grantham, or 3% of its total area. It is 0.4 percentage points higher than the 2.6% recorded for Sullivan County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Grantham town has 74% of the land area of nearby Croydon town (36.8 square miles). These areas describe boundaries, not comparable property prices.

