Upland is a city in San Bernardino County, California, United States on the border with neighboring Los Angeles County. The municipality is located at an elevation of 1,242 feet. As of the 2020 census, the city had a population of 79,040, up from 73,732 at the 2010 census. Upland was incorporated as a city on May 15, 1906; it was previously named North Ontario.