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, NH

ZIP Code 03231 — undefined, NH Demographics & Data

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Upper Middle ClassLow Snow Area

Map, Quick Facts & Location

Quick Facts

Local time
Population
80
Median Income
$141,875
+89% vs US avg
Home Value
N/A
Median Rent
N/A
Median Age
59.5 yrs
+53% vs US avg
City
N/A
Area Code
Congress
Top Ancestry
GermanFrenchEnglish
Scroll to load map
Location
Coordinates
43.4733, -71.7623
Elevation
450 ft
Land Area
2.2 sq mi
Water Area
0.2 sq mi (8% water)

At a glance

Population
80
Density
N/A
Median income
$141,875
+89% vs US avg
Home value
N/A
Median rent
N/A
Timezone

Overview of ZIP Code 03231

RetirementRetirement-oriented community
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What to know about ZIP 03231

ZIP code 03231 covers NH in Merrimack County with a population of about 80.

At a glance, the area shows median age of 59.5 versus a U.S. median of about 38.9.

It sits in telephone area code 603; U.S. House district NH-2; the BOSTON (MANCHESTER) media market.

Local search focus: Retirement

NH fits a retirement-oriented profile (high share of residents 65+ (41.3%)). Residents and relocators commonly research healthcare access, everyday amenities (dining, personal services), and housing costs rather than tech or campus life.

Income and economy in NH

Median household income in ZIP 03231 is about $141,875 — about 89% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 3.8%; unemployment rate near 0.0%; 15.0% of adults with a bachelor’s degree or higher (about 18.7 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Manufacturing; a mean commute of about 47.0 minutes (U.S. average near 26.8).

Housing and affordability in ZIP 03231

Housing tenure and rents show owner-occupancy near 91.2% (about 25.8 points above the national owner-occupancy rate (65.4%)).

Climate risk and migration signals

FEMA’s National Risk Index rates natural-hazard risk for NH as Relatively Low (composite score 78.2), which is elevated versus much of the country. The strongest component scores on US5 are flood (85.8) and hurricane (84.8). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Climate normals for NH show little to no average snow and around 45.5 inches of annual precipitation.

IRS migration statistics show a net inflow of about 4 for ZIP 03231 (NH) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.

Nearby (from this ZIP)

Airport CON (22.8 miles (36.7 km)) · Colby-Sawyer College (11.5 miles (18.6 km)) · Saint-Gaudens National Historical Park (30.7 miles (49.4 km)) · VA: Tilton Outpatient Clinic (7.4 miles (11.9 km))

Full lists and map pins are in the Infrastructure section below.