ZIP code · Belmont · New Hampshire · United States

ZIP code 03220 — Belmont

ZIP code 03220 serves Belmont, New Hampshire.

Postal code
03220
Single source Value from one source, not cross-checked.
City
Belmont
County
Belknap FIPS 33001
State
New Hampshire
Country
United States
Coordinates
43.4512, -71.4890 — precision precise (locality)
View on OpenStreetMap
Population
7,376 (ZCTA, ACS 5-year)
Population density
244 / sq mi
Land area
30.3 sq mi (78.4 km²) (ZCTA, ACS 5-year)
Median household income
$78,151
Per-capita income
$39,870
Median age
48.5
Households
2,963
Housing units
3,562
Median home value
$265,000
Median gross rent
$1,151 / month
Congressional districts
NH-1 (also NH-2) (119th Congress)
USDA hardiness zone
5b (-15 to -10 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/New_York (UTC−5 / UTC−4 DST)
Area code
603
Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.

Nearby localities

Climate — monthly normals

Warmest month Jul (avg high 82°F), coldest Jan (avg low 12°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F303443566877828173604736
Avg low °F121321334555605952403020
Precip in3.12.93.43.63.54.44.63.93.84.83.73.9

NOAA 1991–2020 climate normals from the nearest station: LAKEPORT 2 (6.9 mi) · NOAA NCEI

Places in ZIP 03220

Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page