Hesperia is a city in San Bernardino County, California, United States. It is located 35 miles (56 km) north of downtown San Bernardino in Victor Valley and surrounded by the Mojave Desert. Because of its relatively high elevation and the unique and moderate weather patterns of the region, Hesperia is part of what is locally called the High Desert. The name "Hesperia" means "western land". The 2019 census report estimates that the city has a population of 95,750.

San Bernardino County, officially the County of San Bernardino, is a county located in the southern portion of the U.S. state of California, and is located within the Inland Empire area. As of the 2020 U.S. Census, the population was 2,181,654, making it the fifth-most populous county in California and the 14th-most populous in the United States. The county seat is San Bernardino.