ZIP Code 03237

ZIP code 03237 is classified by USPS as a standard delivery area and covers roughly 95.9 square miles in Gilmanton, Belknap County, New Hampshire. The area is home to 2,254 residents, producing a population density of 24 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 03237 against New Hampshire and the nation.

On the economic side, the median household income for ZIP 03237 sits at $111,359 (9% above the New Hampshire average), while per-capita income is $52,479. The poverty rate stands at 5.4% and the unemployment rate at 7.4%. On housing, the median home value is $345,400 (15% below the state average) with median rent at — per month, and 98.9% of occupied units are owner-occupied, a direct signal of whether 03237 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 36.1% of adults hold a bachelor's degree or higher, the median age is 43.2, and the average commute is —. We also surface 9 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Belknap County, so you can benchmark 03237 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →