ZIP code · Washington · New Hampshire · United States

ZIP code 03280 — Washington

ZIP code 03280 serves Washington, New Hampshire.

Postal code
03280
Single source Value from one source, not cross-checked.
City
Washington
County
Sullivan FIPS 33019
State
New Hampshire
Country
United States
Coordinates
43.1747, -72.0824 — precision precise (locality)
View on OpenStreetMap
Population
1,188 (ZCTA, ACS 5-year)
Population density
26 / sq mi
Land area
45.2 sq mi (117.1 km²) (ZCTA, ACS 5-year)
Median household income
$85,250
Per-capita income
$47,847
Median age
55
Households
453
Housing units
1,016
Median home value
$288,300
Median gross rent
$1,181 / month
Congressional district
NH-2 (119th Congress)
USDA hardiness zone
6a (-10 to -5 °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 80°F), coldest Jan (avg low 12°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F303341546675807871584635
Avg low °F121321324352575547372819
Precip in3.43.13.84.23.84.54.34.04.15.54.24.4

NOAA 1991–2020 climate normals from the nearest station: BRADFORD 2 (7.1 mi) · NOAA NCEI

Places in ZIP 03280

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