- 3 bd
- 2 ba
- 1,248 sqft

The average Grantham, NH home value is $502,863, up 2.2% over the past year. (Updated on )
Zillow Home Value Index (ZHVI), built from the ground up by measuring monthly changes in property level Zestimates, captures both the level and home values across a wide variety of geographies and housing types.
Typical Home Values: $502,863
1-Year Value Change: +2.2%
(Data through September 30, 2026)
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The median home value in Grantham, NH is $502,863 as of September 2026. This represents a 0.1% increase compared to last month and a 2.2% increase year-over-year.
Home values in Grantham, NH have increased by 0.1% month-over-month and 2.2% year-over-year.
The median home value in Grantham, NH ($502,863) compares to: Sullivan County ($384,641), New Hampshire ($510,937), and the U.S. national median ($366,157).