ZIP code · Oakland · California · United States

ZIP code 94603 — Oakland

ZIP code 94603 serves Oakland, California.

Postal code
94603
Single source Value from one source, not cross-checked.
City
Oakland
County
Alameda FIPS 06001
State
California
Country
United States
Coordinates
37.7402, -122.1710 — precision precise (locality)
View on OpenStreetMap
Population
36,440 (ZCTA, ACS 5-year)
Population density
13,502 / sq mi
Land area
2.7 sq mi (7 km²) (ZCTA, ACS 5-year)
Median household income
$71,086
Per-capita income
$26,974
Median age
34.2
Households
10,598
Housing units
11,199
Median home value
$596,100
Median gross rent
$1,838 / month
Congressional district
CA-12 (119th Congress)
USDA hardiness zone
10a (30 to 35 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/Los_Angeles (UTC−8 / UTC−7 DST)
Area code
925 (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 Sep (avg high 74°F), coldest Jan (avg low 42°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F586063666871727274726458
Avg low °F424547495254565756514642
Precip in3.43.52.71.40.60.20.00.00.10.92.03.8

NOAA 1991–2020 climate normals from the nearest station: OAKLAND METRO INTL AP (3.0 mi) · NOAA NCEI

Places in ZIP 94603

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