Tonto Basin, AZ is a city located in Gila County, Arizona and has a land area of 303.30 square miles (785.54 km2). The water area for the city is 13.14 square miles or 34.03 km2. There is one unique zip code in Tonto Basin, Arizona and it is 85553. The area code(s) for Tonto Basin is 928.
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