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ZIP Code 99840

Richland, Benton County, Washington (WA) • Standard Postal Code

WA

City

County

State / Territory

Area Code

(253)

Coordinates

47.9200, -78.5800

Timezone

America/Los_Angeles

Est. Population

173,000

Country

United States (US)

View 99840 on Interactive Map → All ZIP Codes in Richland