Tonasket, WA is a city located in Okanogan County, Washington and has a land area of 632.32 square miles (1,637.70 km2). The water area for the city is 2.55 square miles or 6.60 km2. There is one unique zip code in Tonasket, Washington and it is 98855. The area code(s) for Tonasket is 509.
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