Roosevelt is a census-designated place in Gila County, Arizona, United States. The population was 28 at the 2010 census.The CDP is located on the western edge of Gila County, on the south side of Theodore Roosevelt Lake, a reservoir on the Salt River. The western boundary of the CDP is the Maricopa County line. Arizona State Route 188 runs through Roosevelt, leading southeast 31 miles to Globe, the Gila County seat, and northwest 48 miles to Payson. Arizona State Route 88, the Apache Trail, has its northern terminus just west of Roosevelt at the Theodore Roosevelt Dam. The highway, which is unpaved for much of its distance, is a National Scenic Byway and leads southwest 45 miles to Apache Junction at the eastern edge of the Phoenix area. The Roosevelt CDP is bordered to the southeast by Tonto National Monument.According to the United States Census Bureau, the CDP has a total area of 3.1 square miles, of which 0.01 square miles, or 0.28%, is water.