Land for sale in Pinal County recently totaled nearly $517 million and almost 100,000 acres. Pinal County ranks eighth out of 15 counties in the Copper State for the total acreage of land currently advertised for sale. There were four properties listed as sold in Pinal County through the Land Network Comparable Sales Program. This represented a total value of $39,547. Among cities in Pinal County with land and rural real estate for sale, Casa Grande featured the most land for sale. Pinal County is one of the ten largest counties in Arizona (5,374 square miles). It's located in the Phoenix & Central Arizona region of the state.