Kingman is a city in and the county seat of Mohave County, Arizona, United States. It is named after Lewis Kingman, an engineer for the A…Kingman is a city in and the county seat of Mohave County, Arizona, United States. It is named after Lewis Kingman, an engineer for the Atlantic and Pacific Railroad. It is located 105 miles southeast of Las Vegas, Nevada, and 180 miles northwest of Arizona's state capital, Phoenix. The population was 32,689 at the 2020 census.