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City ZIP codes · California

Alameda, CA ZIP Codes

2 ZIP codes use the postal name Alameda, California (Census 2020 ZCTAs and GeoNames postal codes, October 2026), all residential. Median household income runs from $127,906 in 94501 to $180,938 in 94502, 1.4 times as much (Census Bureau, ACS 2020-2024). Alameda's most populous ZIP code is 94501, with 63,808 people (ACS 2020-2024); 99% of its land is in the city of Alameda.

  • ACS2020-24
  • Census2020
  • GeoNames2026

Where are Alameda's ZIP codes?

94501: $128k median household income94502: $181k median household income945019450294501: $128k median household income94502: $181k median household income945019450294501: $128k median household income94502: $181k median household income9450194502
The 2 residential ZIP codes named Alameda, shaded by median household income in national fifths (ACS 2020-2024). Select a ZIP to open it. <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are Alameda's ZIP codes?

The highest median household income is in 94502 ($180,938), the lowest in 94501 ($127,906). Home values run from $1,204,200 in 94502 to $1,250,300 in 94501.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013, B25077, B01003).

All 2 residential ZIP codes of Alameda

Residential ZIP codes with the postal name Alameda, CA, largest first (ACS 2020-2024); sort by any column
County
94501 Alameda County 63,808 8,052 $128k $1.25M
94502 Alameda County 13,430 5,325 $181k $1.2M

Download the 2 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; 2023 Gazetteer land areas (2020 ZCTAs); town names from simplemaps US ZIP Codes (CC BY 4.0) and GeoNames (CC BY 4.0).

Which counties do Alameda's ZIP codes reach?

Alameda's residential ZIP codes lie in Alameda County.

Which first three digits do Alameda's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Alameda starts with 945.

Three-digit prefixes of Alameda's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Alameda's
PrefixSectional centerHereAll codes
945 Oakland, CA (SCF 945) 2 93

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.