what county is san manuel, az in?
San Manuel is a census-designated place (CDP) in Pinal County, Arizona, United States. The population was 4,375 at the 2000 census. San Manuel was built in 1953 as a company town to serve the then-new San Manuel copper mine, mill and smelter complex. The mine and smelter were permanently closed in 2003. Nearby towns are Oracle, Arizona and Mammoth, Arizona.