Barstow is a city in San Bernardino County, California, United States. Take a look below for 30 incredible and interesting facts about Barstow, California, United States. 1. The population was 25,415 at the 2020 census. 2. Barstow is located 67 miles (108 km) north of San Bernardino. 3. Barstow is a major transportation hub for…