About Oak Hills CDP, California
Oak Hills is a census-designated place (CDP) in San Bernardino County, California, United States. The population was 21,285 at the 2010 census, up from 20,225 at the 2000 census.
Oak Hills is located at 34°23′20″N 117°36′6″W (34.388903, -117.601669).
According to the United States Census Bureau, the CDP has a total area of 12.8 square miles (33 km2), all of it land.