ZIP code 03837: Gilmanton Iron Works, NH
03837 is a ZIP code in Gilmanton Iron Works, New Hampshire, mainly in Belknap County, part of the Laconia, NH micro area. About 1,451 people live here.
- Population
- 1,451
- Median household income
- $119,712
- Typical home value
- $509,000+8% in 12 months
- Median rent
- —gross, per month
- Median age
- 55.1
- Homeowners
- 99.7%of occupied homes
Shaded: ZIP code 03837's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 03837 details
| City | Gilmanton Iron Works |
|---|---|
| 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 | 20 sq mi, plus 0.7 sq mi of water |
| Population density | 73 people per sq mi |
| Bachelor's degree or higher | 41.1% of adults 25+ |
| Average commute | 32.8 minutes |
| Center coordinates | 43.42225, -71.33609 |
ZIP codes near 03837
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 03237 | Gilmanton, NH | 2.7 mi | 2,575 |
| 03225 | Center Barnstead, NH | 6.2 mi | 3,834 |
| 03810 | Alton Bay, NH | 6.6 mi | 2,314 |
| 03218 | Barnstead, NH | 6.7 mi | 1,160 |
| 03249 | Gilford, NH | 7.0 mi | 7,830 |
| 03809 | Alton, NH | 7.4 mi | 3,680 |
| 03220 | Belmont, NH | 8.2 mi | 7,393 |
| 03307 | Loudon, NH | 8.2 mi | 5,724 |
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 03837?
A typical home in ZIP code 03837 is worth about $509,000 (Zillow Home Value Index). The median household here earns $119,712 a year. See what buying here would cost per month, with New Hampshire average taxes and insurance filled in.
Monthly payment for a $509,000 homeWhat can a $119,712 income afford?Rental property numbers
About ZIP code 03837
What city is ZIP code 03837?
ZIP code 03837 is in Gilmanton Iron Works, NH, in Belknap County.
What county is ZIP code 03837 in?
03837 is mainly in Belknap County, New Hampshire.
What is the population of ZIP code 03837?
About 1,451 people live in ZIP code 03837, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 03837 in?
03837 is in Eastern Time (UTC−5). It observes daylight saving time.