ZIP code · Hanover · Maine · United States

ZIP code 04237 — Hanover

ZIP code 04237 serves Hanover, Maine.

Postal code
04237
Single source Value from one source, not cross-checked.
City
Hanover
County
Oxford FIPS 23017
State
Maine
Country
United States
Coordinates
44.4959, -70.7167 — precision precise (locality)
View on OpenStreetMap
Population
220 (ZCTA, ACS 5-year)
Population density
31 / sq mi
Land area
7 sq mi (18.2 km²) (ZCTA, ACS 5-year)
Per-capita income
$103,003
Median age
50.4
Households
108
Housing units
279
Median home value
$241,200
Congressional district
ME-2 (119th Congress)
USDA hardiness zone
5a (-20 to -15 °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
207 (from the nearest rate centre)
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.

Climate — monthly normals

Warmest month Jul (avg high 79°F), coldest Jan (avg low 7°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F272938526574797871574433
Avg low °F7717294151565445352615
Precip in3.22.83.34.23.74.74.14.23.65.43.84.2

NOAA 1991–2020 climate normals from the nearest station: RUMFORD 6SW (3.0 mi) · NOAA NCEI

Places in ZIP 04237

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