About Granite Hills CDP, California
Granite Hills is a census-designated place (CDP) in San Diego County, California, United States. The population was 11,481 at the 2010 census.
Granite Hills is located at 32°47′15″N 116°50′45″W (32.787500, -116.845833).
According to the United States Census Bureau, the CDP has a total area of 7.2 square miles (18.7 km²), all land.