Golden Valley is an unincorporated community and a census-designated place in Mohave County, Arizona, United States. The population was 4,515 at the 2000 census.Golden Valley, Arizona was named after a company from Hollywood, California, that went into partnership with Crystal Collins to develop most of the land south of Highway 68 into 2.5 acre parcels. The company’s name was Golden Valley Development Company. The land was split into 2.5 acre parcels and sold for $695 each: $10 down and $10 per month.