Wallula, WA is a city located in Walla Walla County, Washington and has a land area of 30.87 square miles (79.95 km2). The water area for the city is 10.61 square miles or 27.48 km2. There is one unique zip code in Wallula, Washington and it is 99363. The area code(s) for Wallula is 509.
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