Home > CA > Alameda County > Hayward > Zip 94542

Zip Code 94542 — Hayward, CA

94542 is a ZIP Code associated with Hayward, CA, located within Alameda. The postal region supports an estimated population of 14,871 residents across Data Pending housing units, with a population density of 663.5 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (37.655300, -122.025840)

Data MetricLocal Statistic
Postal / Zip Code94542
Primary CityHayward
State / ProvinceCA
CountyAlameda
Total Population14,871
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density663.5 people/sq mi
TimezoneAmerica/Los_Angeles

How 94542 Compares

MetricZIP 94542Alameda CountyCA State Average
Population14,8711,668,63539,286,245
Median IncomeData PendingN/AN/A
Population Density663.5 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 94544Hayward2.3 mi76,947N/A
Zip 94552Castro Valley3.5 mi14,506N/A
Zip 94541Hayward3.6 mi67,139N/A
Zip 94587Union City5.0 mi67,464N/A
Zip 94545Hayward5.5 mi32,843N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →