what county is riverdale
Riverdale, California. Riverdale (formerly, Liberty Settlement) is a census-designated place (CDP) in Fresno County, California, United States. The population was 3,153 at the 2010 census, up from 2,416 at the 2000 census. Riverdale is located 23 miles (37 km) south of Fresno, at an elevation of 223 ft (68 m).