San Juan, Texas

1 ZIP code · Central time

ZIP codes (largest first)

78589 · 40,231
Population36,149
StateTexas
CountyHidalgo County
Time zoneCentral
Land area12.12 sq mi

Area codes in this area

956

These are the area codes that most often serve San Juan (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 San Juan

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