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 (379 m). As of the 2020 census, the city had a population of 79,040, up from 73,732 at the 2010 census.

George Chaffey was a Canadian–born engineer, inventor and entrepreneur who with his brother William developed large parts of Southern California, including what became the community of Etiwanda and the cities of Ontario, and Upland. They undertook similar developments in Australia, which became the city of Mildura, and the town of Renmark and Paringa.