South San Francisco, California

2 ZIP codes · Pacific time

ZIP codes (largest first)

94080 · 64,76194083 (PO box)
Population64,305
StateCalifornia
CountySan Mateo County
Time zonePacific
Land area9.2 sq mi

Area codes in this area

415628650

These are the area codes that most often serve South San Francisco (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 South San Francisco

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