Victorville is a city in Victor Valley in San Bernardino County, California. Its population as of the 2020 census was 134,810.Victorville is the principal city of a Victor Valley–based urban area defined by the United States Census Bureau: the Victorville–Hesperia–Apple Valley urban area had a population of 355,816 as of the 2020 census, making it the 117th largest in the United States.