There was a total of $289 million of farmsand rural real estate for sale in Seminole County, Florida, recently on Land.com. The total size of all Seminole County farms, rural land, hunting land and other land for sale was around 8,000 acres. Seminole County ranks 41st out of 67 counties in the Everglade State for the combined amount of land currently advertised for sale. Of all farms and rural land for sale in Seminole County, Sanford featured the most land for sale. Seminole County is the 65th largest county (345 square miles) in Florida. It's located in the Central Florida region of the state.