Bonita is a census-designated place (CDP) in southern San Diego County, California, nestled between the cities of Chula Vista, National City, and San Diego. The population was 12,538 at the 2010 census.
Bonita is located at 32°39′30″N 117°02′07″W / 32.658420°N 117.035336°W / 32.658420; -117.035336.
According to the United States Census Bureau, Bonita has a total area of 5.1 square miles (13.3 km²). 5.0 square miles (12.9 km²) of it is land and 0.1 square miles (0.4 km²) of it (2.71%) is water.