A combined almost 10,000 acres were listed for sale in Pima County recently; the value of all Pima County farms, ranches, hunting land and other land for sale was $743 million. Pima County ranks fifth in the Copper State for the total number of acres of land currently advertised for sale. Of all locations in Pima County with land and rural real estate for sale, Tucson featured the most land for sale. Pima County is one of the ten largest counties in Arizona (9,189 square miles). It's located in the Tucson & Southern Arizona region of Arizona.