| ZIP Code | 03837 |
|---|---|
| City | Gilmanton Iron Works |
| State | New Hampshire (NH) |
| County | Belknap County |
| Area Code | 603 |
| Elevation | 709 ft |
| Latitude | 43.422251 |
|---|---|
| Longitude | -71.336087 |
| Timezone | New York (DST) |
| FIPS | 33001 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 50.9 yrs ↑ 19% since 2019 |
|---|---|
| Avg Household Size | 2.42 |
| Below Poverty | 9.3% ≈ Avg |
| College Grads | 54.3% ▲ 40% above avg |
| Unemployment | 1.6% ▼ 67% below avg |
| No HS Diploma | 34 (2.6%) |
| HS Graduate | 205 (15.8%) |
| Some College | 185 (14.2%) |
| Associates | 171 (13.1%) |
| Bachelors | 126 (9.7%) |
| Graduate Degree | 580 (44.6%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $116,605 ▲ 53% above avg ↑ 78% since 2019 |
|---|---|
| Median Home Value | $365,700 ▲ 31% above avg ↑ 51% since 2019 |
| Home/Income Ratio | 3.1x (nat avg ~3.5x) |
| Total Units | 1,073 |
| Vacant Units | 379 |
| Avg HH Size | 2.42 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 1,073 |
|---|---|
| Vacant | 379 |
| Owner Occupied | 93.7% |
| Renter Occupied | 6.3% |
| Avg HH Size | 2.42 |
ZIP code 03837 is located in Gilmanton Iron Works, New Hampshire, within Belknap County. With a population of 1,684, this is a sparsely populated ZIP code with a mature community — the median age is 50.9 years. Economically, 03837 is a upper-middle-income ZIP code: the median household income of $116,605 is significantly above the national average.
Real estate in ZIP code 03837 represents a mid-range housing market. The median home value of $365,700 is above the national average. Homeownership is strong here — 93.7% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 51% since 2019.
The population of 03837 is primarily White (95.67%). Residents are well-educated — 54.3% hold a bachelor's degree or higher, which is above the national average. Poverty affects a relatively small share of residents at 9.3%. Household income has grown by 78% since 2019.
The unemployment rate in 03837 stands at 1.6%, which is well below the national average. As in most parts of the country, driving alone is the dominant commute mode at 83%.
Overall, ZIP code 03837 in Gilmanton Iron Works, NH is characterized as upper-middle-income, well-educated, a mature community, and predominantly owner-occupied. With 1,684 residents, a median household income of $116,605, and a median home value of $365,700, it offers a clear picture of life in this part of New Hampshire.