Banning is a city in Riverside County, California, United States. The population was 29,603 at the 2010 census, up from 23,562 at the 2000 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 has a western neighbor, the city of Beaumont, which shares geographic and regional features.