La Mesa, California

4 ZIP codes · Pacific time

ZIP codes (largest first)

91942 · 41,42491941 · 33,21891943 (PO box)91944 (PO box)
Population60,797
StateCalifornia
CountySan Diego County
Time zonePacific
Land area9.09 sq mi

Area codes in this area

858

These are the area codes that most often serve La Mesa (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 La Mesa

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