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ZIP CODE TABULATION AREA

03237

New Hampshire · 2,575 residents · 38.0 sq mi
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ZIP 03237 is a ZIP code of 2,575 people in Belknap County. Owners hold 99% of the housing stock. At a median age of 43.2, this is an older place than the country as a whole. 3% of people in this ZIP code were born outside the United States. Households take in $111,359 a year at the median, 35% more than the country as a whole. The poverty rate is 5.4%, under the national 12.5%. Among the 13 ZIP codes in Belknap County, 03237 ranks 6th by median household income.

$111,359
US average: $82,259
$52,479
US average: $44,673
$345,400
US average: $376,019
36.1%
US average: 35.6%
Land area
38.0 sq mi
Age, sex & households
Under 18
16.8%
Age 65+
14.8%
51.6%
48.4%
2.35 people
Race & ethnicity · 2024
2024
White, non-Hispanic93.7%(2,414)
Black0%(0)
Hispanic / Latino2.4%(63)
Asian0%(0)
Other3.8%(98)
15
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Housing
3.1
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Within Belknap County
Income rank vs other ZIPs
LOWEST6TH OF 13HIGHEST
Adjacent ZIPs
03218$112,500
03220$68,242
03225$111,660
03226$107,500
Frequently asked

How many people live in ZIP code 03237?

ZIP code 03237 has about 2,575 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 03237?

The typical household in ZIP code 03237 earns about $111,359 a year. Half of households make more than that, and half make less.

Is ZIP code 03237 expensive?

In ZIP code 03237, the median home is worth about $345,400.

How educated are people in ZIP code 03237?

About 36.1% of adults age 25 and over in ZIP code 03237 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 03237?

About 5.4% of people in ZIP code 03237 live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR · ZCTA · UPDATED 2024