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ZIP CODE TABULATION AREA

03257

New Hampshire · 4,484 residents · 23.553 sq mi
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ZIP 03257 is significantly wealthier than the US average, with a median household income of $107,000. Population has held roughly steady since 2024. 65% of adults hold a bachelor's degree or higher, well above the national rate of 36%. Median home value is $559,000. With a median age of 50.9, the population is older than the US median of 38.9. Among the 27 ZIP codes in Merrimack County, 03257 ranks 15th by median household income.

$107,000
US average: $82,259
$559,000
US average: $376,019
64.7%
US average: 35.6%
Age, sex & households
Under 18
13.0%
Age 65+
34.5%
48.2%
51.8%
2.20 people
Race & ethnicity · 2024
2024
White, non-Hispanic89%(3,991)
Black1.2%(52)
Hispanic / Latino2.8%(126)
Asian3.3%(146)
Other3.8%(169)
Diversity Score25.5%(1,146)
Housing
Commute & vehicles
Work & employment
People & community
Affordability & inequality
Within Merrimack County
Income rank vs other ZIPs
LOWEST15TH OF 27HIGHEST
Adjacent ZIPs
03046$124,348
03106$118,442
03216$88,311
03221$109,803
Frequently asked

How many people live in ZIP code 03257?

ZIP code 03257 has about 4,484 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 03257?

The typical household in ZIP code 03257 earns about $107,000 a year. Half of households make more than that, and half make less.

Is ZIP code 03257 expensive?

In ZIP code 03257, the median home is worth about $559,000, and the typical rent is about $1,594 a month.

How educated are people in ZIP code 03257?

About 64.7% of adults age 25 and over in ZIP code 03257 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 03257?

About 0.9% of people in ZIP code 03257 live below the federal poverty line.

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