Alameda, California

2 ZIP codes · Pacific time

ZIP codes (largest first)

94501 · 63,80894502 · 13,430
Population77,238
StateCalifornia
CountyAlameda County
Time zonePacific
Land area10.4 sq mi

Area codes in this area

341510

These are the area codes that most often serve Alameda (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Find the ZIP+4 for an address in Alameda

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Population: U.S. Census Bureau, ACS 5-year estimates, 2024.