ZIP Code 03237 - Gilmanton New Hampshire
Overview
ZIP Code 03237 is located in Gilmanton New Hampshire. Portions of 03237 are also in Canterbury and Alton (town). 03237 is primarily within Belknap County, with some portions in Merrimack County. Regionally, 03237 is located in the Southern New Hampshire Region.
ZIP Code 03237 Quick Stats
| ZIP Code Name | Gilmanton |
| Primary County | Belknap County |
| ZIP Code Type | Standard |
| Population (2022) | 2,338 |
| Area Code(s) | 603 |
| Current Time | EDT |
ZIP Code 03237 Map
03237 Demographics
03237 can be classified socioeconomically as Middle Class class compared to other ZIP Codes in New Hampshire based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 03237 is White. The current unemployment level in 03237 is 3%.
| Population | 2,338 |
| Population Growth Rate | 0.86% |
| Population Density | 57 People per Square Mile |
| Total Households | 989 |
| Percentage High Income Households | 2.1% |
| Median Household Income (2021) | $84,199 |
| Average Adjusted Gross Income (2021) | $433,300 |
| Current Unemployment Rate (May 2026) | 3% |
| Majority Race/Ethnicity | White - 94.87% |
03237 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 2,034 | 94.87% |
| Black | 37 | 1.73% |
| Hispanic | 68 | 3.17% |
| Asian | 5 | 0.23% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
03237 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 105 | 6.7% |
| Bachelor Degree | 297 | 18.97% |
| High School Diploma | 420 | 26.82% |
| No High School Diploma | 0 | 0% |
| GED or Alternate | 13 | 0.83% |
| 1 or More Years of College | 427 | 27.27% |
| Associates Degree | 153 | 9.77% |
| Masters Degree | 127 | 8.11% |
| Professional Degree | 7 | 0.45% |
| Doctorate Degree | 17 | 1.09% |
03237 Geography
| Coordinates | 43.43006897, -71.38306427 |
| Adjacent ZIP Codes | |
| Cities/Towns in 03237 | |
| Region | Southern New Hampshire Region |
| Metropolitan/Micropolitan Stat Areas | Laconia, NH Concord, NH |
| Time Zone | Eastern Daylight Time |
| IANA Timezone | America/New_York |
| Area | 41 Square Miles |
03237 Schools
03237 Weather and Climate Data
| Plant Hardiness Zone | Zone 5b: -15F to -10F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | October 1 - 10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | May 11 - 20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | Dfb - Humid Continental Mild Summer, Wet All Year | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 58g - Worcester/Monadnock Plateau | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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