Yuma County administrative offices are located at 198 South Main Street, Yuma, AZ 85364; phone: 928‑373‑1010.
TOWNS
Created by the Arizona Territorial Legislature, Yuma is one of four original Arizona counties. La Paz County was taken off in 1982. The first county seat was at La Paz; it was moved to Yuma (then called Arizona City) in 1873.