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ZIP CODE TABULATION AREA

03031

New Hampshire · 11,849 residents · 33.9 sq mi
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ZIP 03031 is home to 11,849 people in Hillsborough County. 66% of adults hold a bachelor's degree, against 36% nationally. Owners hold 92% of the housing stock. At a median age of 45.9, this is an older place than the country as a whole. The median household earns $153,125, about 86% above the national median. That is roughly 48% ahead of the Hillsborough County median. Among the 34 ZIP codes in Hillsborough County, 03031 ranks 7th by median household income.

$153,125
US average: $82,259
$74,400
US average: $44,673
$537,300
US average: $376,019
65.8%
US average: 35.6%
Land area
33.9 sq mi
Age, sex & households
Under 18
22.4%
Age 65+
20.3%
48.5%
51.5%
2.60 people
Race & ethnicity · 2024
2024
White, non-Hispanic92.7%(10,979)
Black0%(0)
Hispanic / Latino3.7%(438)
Asian0.8%(93)
Other2.9%(339)
17
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Housing
3.5
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Within Hillsborough County
Income rank vs other ZIPs
LOWEST7TH OF 34HIGHEST
Adjacent ZIPs
03033$171,046
03043$104,063
03045$119,205
03047$103,603
Frequently asked

How many people live in ZIP code 03031?

ZIP code 03031 has about 11,849 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 03031?

The typical household in ZIP code 03031 earns about $153,125 a year. Half of households make more than that, and half make less.

Is ZIP code 03031 expensive?

In ZIP code 03031, the median home is worth about $537,300, and the typical rent is about $1,462 a month.

How educated are people in ZIP code 03031?

About 65.8% of adults age 25 and over in ZIP code 03031 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 03031?

About 4.4% of people in ZIP code 03031 live below the federal poverty line.

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