ZIP code · Rockwood · Maine · United States

ZIP code 04478 — Rockwood

ZIP code 04478 serves Rockwood, Maine.

Postal code
04478
Single source Value from one source, not cross-checked.
City
Rockwood
County
Somerset FIPS 23025
State
Maine
Country
United States
Coordinates
45.8641, -69.8768 — precision precise (locality)
View on OpenStreetMap
Population
491 (ZCTA, ACS 5-year)
Population density
2 / sq mi
Land area
257.6 sq mi (667.2 km²) (ZCTA, ACS 5-year)
Median household income
$58,750
Per-capita income
$44,806
Median age
65.6
Households
248
Housing units
944
Median home value
$368,800
Congressional district
ME-2 (119th Congress)
USDA hardiness zone
4b (-25 to -20 °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
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 76°F), coldest Jan (avg low 0°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F212534476372767668534027
Avg low °F0111263848535142322310
Precip in2.82.52.83.84.05.04.64.03.54.54.13.9

NOAA 1991–2020 climate normals from the nearest station: PITTSTON FARMS NEPP (4.6 mi) · NOAA NCEI

Places in ZIP 04478

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