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ZIP code

94557

Hayward, CA

PO BOX

94557 is a po box for Hayward in Alameda County. Census ACS does not publish a population for this code. IRS last reported 323 people in 2007.

Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology

IRS 2007 population

323

IRS Statistics of Income 2007. Geography: ZCTA 94557. Methodology

About ZIP code 94557

Type

PO BOX

Timezone

America/Los_Angeles

Area codes

510

IRS households (2007)

187

Acceptable cities: Mount Eden

More enterprise fields

Timezone
America/Los_Angeles
Area Codes
510
World Region
NA
Country
US

Commercial ZIP directory · not ACS

U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 94557. Methodology

People in 94557

Census fields are empty for this ZIP.

Income and housing in 94557

ACS does not publish income or housing figures for this ZIP.

Places covering 94557

Cities and places — Population overlap

Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.

No place overlap rows for this ZIP.

ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

Counties — Population overlap

Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.

No county overlap rows for this ZIP.

ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

Population history for 94557

IRS population
349174020052007

Hover the chart or read the table below (Year | ACS | IRS).

Population history. Year | ACS population | IRS population. ACS and IRS are separate series. Blank cells mean that source did not publish a count for the year.
YearACS populationIRS population
2005239
2006246
2007323

ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.

ZIP codes near 94557

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ZIP centroids within 2 miles

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ZIP code 94557 FAQ

What city is ZIP code 94557 in?
94557 is in Hayward, CA.
What county is 94557 in?
94557 is in Alameda County.
What is the median household income in 94557?
Median household income is not published for 94557.
Which ZIP codes are near 94557?
Use the radius tool on this page to list ZIP codes within a chosen distance of 94557.