West Richland, WA is a city located in Benton County, Washington and has a land area of 25.81 square miles (66.85 km2). The water area for the city is 0.68 square miles or 1.76 km2. There is one unique zip code in West Richland, Washington and it is 99353. The area code(s) for West Richland is 509.
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