Upland is a city in San Bernardino County, California, located at an elevation of 1,242 feet (379 m). As of the 2010 census, the city had a population of 73,732, up from 68,393 at the 2000 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 city is part of the Inland Empire, a metropolitan area situated directly east of the Los Angelesmetropolitan area. Upland originally was an irrigation colony established by George and William Chaffey. When founded, it was a small rural town based on agriculture, specifically citrus fruits and grapes.