Belmont, California

1 ZIP code · Pacific time

ZIP codes (largest first)

94002 · 27,534
Population27,337
StateCalifornia
CountySan Mateo County
Time zonePacific
Land area4.63 sq mi

Area codes in this area

650

These are the area codes that most often serve Belmont (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 Belmont

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