There was a combined nearly $25 million of farms and ranches for sale in Dawson County recently on Land.com. The total size of all Dawson County ranches, farms, hunting land and other rural land and acreage for sale was almost 100,000 acres. Dawson County ranks 28th out of 56 counties in Big Sky Country for the total acreage of land currently advertised for sale. Among cities in Dawson County with land for sale, Glendive had the most land for sale. Dawson County is the 28th largest county (2,383 square miles) in Montana. It's located in the Southeast Montana region of Montana.