Hermiston, Oregon

1 ZIP code · Pacific time

ZIP codes (largest first)

97838 · 28,512
Population19,546
StateOregon
CountyUmatilla County
Time zonePacific
Land area8.46 sq mi

Area codes in this area

458541

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

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