The value of ranches, farms, hunting land and other rural land and acreage for sale in Arizona's Santa Cruz County recently on Land.com was $211 million. This represents approximately 100,000 acres of farms, ranches, and rural real estate for sale in Santa Cruz County. Santa Cruz County ranks 10th in the Grand Canyon State for the combined amount of land currently advertised for sale. Rio Rico featured the most land for sale. From an economic perspective, government and state-level services contribute most to Santa Cruz County's overall GDP. Santa Cruz County is the 15th largest county (1,238 square miles) in Arizona. It's located in the Tucson & Southern Arizona region of the state.