Richland, Washington

2 ZIP codes · Pacific time

ZIP codes (largest first)

99352 · 37,43099354 · 25,559
Population62,753
StateWashington
CountyBenton County
Time zonePacific
Land area42.47 sq mi

Area codes in this area

509

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

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