The overall value of farms, rural land, hunting land and other land for sale in Florida's Santa Rosa County recently on Land.com was almost $708 million. This represents nearly 6,000 acres of farms and rural real estate for sale in Santa Rosa County. Santa Rosa County ranks sixth in the state for the total acreage of land currently advertised for sale. Among cities in Santa Rosa County with land for sale, Milton featured the most land for sale. Santa Rosa County is the 17th biggest county (1,173 square miles) in Florida. It's located in the Northwest Florida region of the state.