Benton City, WA is a city located in Benton County, Washington and has a land area of 209.31 square miles (542.11 km2). The water area for the city is 1.17 square miles or 3.03 km2. There is one unique zip code in Benton City, Washington and it is 99320. The area code(s) for Benton City is 509.
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