Hinkley is an unincorporated community in the Mojave Desert, in San Bernardino County, California, U.S., 14 miles northwest of Barstow, 59 miles east of Mojave, 47 miles north of Victorville and about 121 miles driving distance north-northeast of Los Angeles. Just north of California State Highway 58, the residents have faced concerns over chromium-6 in their well water from the world’s largest plume of this cancer-causing chemical.