Residential delivery area · California
ZIP Code 94542: Hayward, CA
ZIP code 94542 is in Hayward, California, entirely in Alameda County (Census 2020 ZIP-county file). About 15,000 people live there (Census Bureau, ACS 2020-2024), the least populous of Hayward's 4 residential ZIP codes. Median household income is $133,734 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Hayward (71%) and Fairview (13%); 16% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Hayward · 4 residential ZIPs
- County
- Alameda County
- Census places
- Hayward (71%); Fairview (13%) census-designated place
- Neighborhood
- Hayward Highland GeoNames
- Metro area
- San Francisco-Oakland-Fremont, CA
- House district
- CA-14 119th Congress
- State
- California
- Time zone
- Pacific
- Land area
- 8.7 sq mi · 1,719 people per sq mi
Where is ZIP code 94542?
94542 centers on 37.655°, -122.026° and covers 8.7 square miles of land. It borders 4 ZIP codes: 94544, 94541, 94552, 94587.
The map draws ZIP code areas only. For the streets inside 94542, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 94542 compare with the rest of Hayward?
| Measure | 94542 | In Hayward | In Alameda County | In CA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 14,871 | 4th of 4 | 42nd of 53 | 906th of 1,802 |
| Median household income | $134k | 1st of 4 | 23rd of 48 | 250th of 1,189 |
| Median home value | $1.15M | 1st of 4 | 22nd of 49 | 258th of 1,317 |
Its median household income is higher than in 94% of U.S. residential ZIP codes, and it is denser than 83% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 94542?
The 2020 Census counted 15,691 people in 94542; the ACS, which samples households over 2020-2024, estimates 14,871. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 14,871
- 2020 Census count
- 15,691
- Households
- 4,936
- Median age
- 43.1
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 94542?
Of the 14,871 people the ACS estimates in 94542, 13.8% are under 18 and 17.2% are 65 or older. The largest group by race and Hispanic origin is Hispanic or Latino (31.0%), then White (not Hispanic) (24.1%).
- Under 1813.8%
- 18 to 6469.1%
- 65 and older17.2%
- Hispanic or Latino31.0%
- White, not Hispanic24.1%
- Asian, not Hispanic23.9%
- Other or two or more10.8%
- Black, not Hispanic10.3%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 94542 earn?
Median household income is $133,734 (ACS 2020-2024), the 23rd highest of the 48 ranked ZIP codes in Alameda County.
- Median household income
- $133,734
- Income per person
- $63,119
- Below the poverty line
- 7.6%
- Unemployed (of the labor force)
- 8.2%
- Adults 25+ with a bachelor's degree
- 48.6%
- Adjusted gross income per tax return, 2022
- $164,8626,740 returns; wages 70% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 94542?
FHFA's house price index for 94542, built from repeat sales and appraisals of the same homes, rose 81% from 2015 to 2025 and rose 36% from 2020 to 2025, and moved +2.9% in 2025.
- Median home value (owners' estimate)
- $1,148,000
- Median gross rent
- $2,676
- Homes owned by their occupants
- 72.6%
- Housing units
- 5,201
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 94542?
172 business establishments had a location in this ZIP code in 2023, 52 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services37
- Health care and social assistance22
- Accommodation and food services22
- Construction18
- Other services (except public administration)17
- Real estate and rental and leasing14
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 94542?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 94544 | Hayward | 76,947 | $108k | 2.3 mi |
| 94541 | Hayward | 67,139 | $106k | 3.6 mi |
| 94552 | Castro Valley | 14,506 | $213k | 3.6 mi |
| 94587 | Union City | 67,464 | $134k | 5.3 mi |
| 94545 | Hayward | 32,843 | $114k | 5.7 mi (near) |
| 94580 | San Lorenzo | 29,420 | $111k | 6.1 mi (near) |
| 94536 | Fremont | 70,619 | $168k | 6.3 mi (near) |
| 94578 | San Leandro | 41,769 | $94k | 6.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.