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City ZIP codes · California

Hayward, CA ZIP Codes

7 ZIP codes use the postal name Hayward, California (Census 2020 ZCTAs and GeoNames postal codes, October 2026): 4 residential and 3 for PO boxes or a single organization. Median household income runs from $105,729 in 94541 to $133,734 in 94542, 1.3 times as much (Census Bureau, ACS 2020-2024). Hayward's most populous ZIP code is 94544, with 76,947 people (ACS 2020-2024); 87% of its land is in the city of Hayward.

  • ACS2020-24
  • Census2020
  • GeoNames2026

Where are Hayward's ZIP codes?

94541: $106k median household income94542: $134k median household income94544: $108k median household income94545: $114k median household income9454594544945429454194541: $106k median household income94542: $134k median household income94544: $108k median household income94545: $114k median household income9454594544945429454194541: $106k median household income94542: $134k median household income94544: $108k median household income94545: $114k median household income94545945449454294541
The 4 residential ZIP codes named Hayward, 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 Hayward's ZIP codes?

The highest median household income is in 94542 ($133,734), the lowest in 94541 ($105,729). Home values run from $812,000 in 94541 to $1,148,000 in 94542.

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

All 4 residential ZIP codes of Hayward

Residential ZIP codes with the postal name Hayward, CA, largest first (ACS 2020-2024); sort by any column
County
94544 Alameda County 76,947 7,026 $108k $827k
94541 Alameda County 67,139 9,005 $106k $812k
94545 Alameda County 32,843 2,268 $114k $879k
94542 Alameda County 14,871 1,719 $134k $1.15M

Download the 7 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).

PO Box and single-organization ZIP codes in Hayward

3 ZIP codes named Hayward have no residential delivery area: post office boxes, or one organization (a large employer, an agency, a university) with its own code. The Census Bureau publishes no figures for them.

Hayward, CA: ZIP codes without a residential area, for PO boxes or one organization (GeoNames postal codes; USPS does not publish openly which is which)
ZIPCounty
94540Alameda County
94543Alameda County
94557Alameda County

Source: GeoNames postal codes (CC BY 4.0); a ZIP code with no Census ZCTA has no residential delivery area.

Which counties do Hayward's ZIP codes reach?

Hayward's residential ZIP codes lie in Alameda County.

Which places do Hayward's ZIP codes cover?

A postal name is not a city limit. By the Census Bureau's places, Hayward's residential ZIP codes cover Hayward itself and 3 other places, each listed with the ZIP codes that have at least 5% of their land in it or hold most of the place:

  • Fairview census-designated 94541, 94542
  • Cherryland census-designated 94541
  • San Lorenzo census-designated 94541

Source: U.S. Census Bureau, 2020 ZCTA-to-place relationship file (shares of land).

Which first three digits do Hayward'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 Hayward starts with 945.

Three-digit prefixes of Hayward'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 Hayward's
PrefixSectional centerHereAll codes
945 Oakland, CA (SCF 945) 7 93

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