Banning is a city in Riverside County, California, United States. The population was 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 has a western neighbor, the city of Beaumont, which shares geographic and regional features. Banning and Beaumont have been rapidly growing in size and population since the 1990s. Both cities are about 80 miles east of downtown Los Angeles and 30 miles west of Palm Springs, each connected by freeway and railroad.