ZIP code 03237: Gilmanton, NH
03237 is a ZIP code in Gilmanton, New Hampshire, mainly in Belknap County, part of the Laconia, NH micro area. About 2,575 people live here.
- Population
- 2,575
- Median household income
- $111,359
- Typical home value
- $453,600+5.7% in 12 months
- Median rent
- —gross, per month
- Median age
- 43.2
- Homeowners
- 98.9%of occupied homes
Shaded: ZIP code 03237's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 03237 details
| City | Gilmanton |
|---|---|
| State | New Hampshire |
| County | Belknap County |
| Metro area | Laconia, NH |
| Time zone | Eastern Time (UTC−5), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 38 sq mi, plus 1 sq mi of water |
| Population density | 68 people per sq mi |
| Bachelor's degree or higher | 36.1% of adults 25+ |
| Average commute | 33 minutes |
| Center coordinates | 43.43158, -71.38766 |
ZIP codes near 03237
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 03837 | Gilmanton Iron Works, NH | 2.7 mi | 1,451 |
| 03220 | Belmont, NH | 5.6 mi | 7,393 |
| 03249 | Gilford, NH | 6.1 mi | 7,830 |
| 03299 | Tilton, NH | 7.1 mi | — |
| 03298 | Tilton, NH | 7.1 mi | — |
| 03810 | Alton Bay, NH | 7.3 mi | 2,314 |
| 03307 | Loudon, NH | 7.4 mi | 5,724 |
| 03252 | Lochmere, NH | 7.9 mi | — |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Buying a home in 03237?
A typical home in ZIP code 03237 is worth about $453,600 (Zillow Home Value Index). The median household here earns $111,359 a year. See what buying here would cost per month, with New Hampshire average taxes and insurance filled in.
Monthly payment for a $453,600 homeWhat can a $111,359 income afford?Rental property numbers
About ZIP code 03237
What city is ZIP code 03237?
ZIP code 03237 is in Gilmanton, NH, in Belknap County.
What county is ZIP code 03237 in?
03237 is mainly in Belknap County, New Hampshire.
What is the population of ZIP code 03237?
About 2,575 people live in ZIP code 03237, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 03237 in?
03237 is in Eastern Time (UTC−5). It observes daylight saving time.