Beaumont is a city in Riverside County, California, United States located at a half mile elevation in the pass area south of Southern California's highest peak, San Gorgonio Mountain, and north of San Jacinto Peak.Beaumont is bordered on the east by the city of Banning, on the south by the city of San Jacinto, on the west by the city of Calimesa, and on the north by the unincorporated community of Cherry Valley.