Washington Park, ArizonaWashington Park is a census-designated place in Gila County, Arizona, United States. The population was 85 in the 2020 census, and 70 at the 2010 United States census.GeographyTonto Village is located in northern Gila County in the valley of the upper reaches of the East Verde River, just below the Mogollon Rim. It is north of Payson via Houston Mesa Road and Belluzzi Boulevard. According to the United States Census Bureau, the CDP has a total area of, all land.EducationIt is in the Payson Unified School District. Payson High School is the zoned comprehensive high school.