Mohave County, Arizona: History
Mohave County was the one of four original Arizona Counties created by the 1st Arizona Territorial Legislature. The county territory was originally defined as being west of longitude 113° 20' and north of the Bill Williams River. Pah-Ute County was created from it in 1865 and was merged back into Mohave County in 1871 when much of its territory was ceded to Nevada in 1866. The county's present boundaries were established in 1881. The county is also home to a large polygamous Fundamentalist Church of Jesus Christ of Latter-Day Saints sect located in Colorado City.
Mohave County has had five county seats: Mohave City (1864–1867), Hardyville (1867–1873), Cerbat (1873–1877), Mineral Park (1877–1887), and Kingman (since 1887).