Hinkley is an unincorporated community in the Mojave Desert, in San Bernardino County, California, United States, 14 miles (23 km) northwest of Barstow, 59 miles (95 km) east of Mojave, 47 miles (76 km) north of Victorville and about a 120 mile (193 km) drive northeast of Los Angeles, just north of California State Route 58. The residents have faced concerns over hexavalent chromium in their well water from the world's largest plume of this cancer-causing chemical.

Barstow is a city in San Bernardino County, California, in the Mojave Desert of Southern California. Located in the Inland Empire region of California, the population was 25,415 at the 2020 census. Barstow is an important crossroads for the Inland Empire and home to Marine Corps Logistics Base Barstow.