Upland is a city in San Bernardino County, California, United States. The municipality is located at an elevation of 1,242 feet (379 m). As of the 2020 census, the city had a population of 79,040, up from 73,732 at the 2010 census. It was incorporated on May 15, 1906, after previously being named North Ontario. Upland is located at the foot of the highest part of the San Gabriel Mountains. The Los Angeles suburb is part of the Inland Empire, a metropolitan area situated directly east of the Los Angeles metropolitan area.