Comprising the booming Phoenix metropolitan area, Maricopa County is the fastest growing county in the country in terms of population growth. There was a combined nearly $7 billion of farms and ranches for sale in Arizona's Maricopa County recently on Land.com. The total acreage of all Maricopa County farms, ranches, hunting land and other land for sale was around 100,000 acres. Maricopa County is among the top 10 counties in the United States with the most land currently for sale. Maricopa County ranks first based on the total acres of land for sale among all the counties in the Grand Canyon State. There were three properties listed as sold in Maricopa County through the Land Network Comparable Sales Program. This represented a total value of $146,999. Of all farms and ranches for sale in Maricopa County, Scottsdale featured the most land for sale. Maricopa County is one of the ten largest counties in Arizona (9,224 square miles). It's located in the Phoenix & Central Arizona region of the state.