There was a total of approximately $403 million of farms, ranches, hunting land and other land for sale in Salt Lake County recently on Land.com. The total size of all Salt Lake County land for sale was 1,000 acres. Salt Lake County ranks ninth in the Beehive State for the total acreage of land currently advertised for sale. Of all ranches, farms, hunting land and other rural land and acreage for sale in Salt Lake County, Herriman had the most land for sale. Salt Lake County is the 24th largest county (805 square miles) in Utah. It's located in the Central Utah region of the state.