Banning is a city in Riverside County, California, United States. Its population was 29,505 as of the 2020 census, down from 29,603 at the 2010 census. It is situated in the San Gorgonio Pass, also known as Banning Pass. It is named for Phineas Banning, stagecoach line owner and the "Father of the Port of Los Angeles." Banning shares geographic and regional features with its western neighbor, the city of Beaumont.