The total value of farms, rural land, hunting land and other land for sale in Collier County recently on Land.com was approximately $2 billion. This represents approximately 6,000 acres of farms, rural land, hunting land and other land for sale in Collier County. Collier County ranks eighth out of 67 counties in the state for the total acreage of land currently advertised for sale. Of all locations in Collier County with land for sale, Naples featured the most land for sale. Based on its natural assets, Collier County's economy is dependent on tourism and recreation. Collier County is one of the ten largest counties in Florida (2,304 square miles). It's located in the Southwest Florida region of Florida.