The value of land for sale in Montana's Granite County recently on Land.com was nearly $95 million. This represents nearly 100,000 acres of ranches, farms, hunting land and other rural land and acreage for sale in Granite County. Granite County ranks 16th in the Treasure State for the total acreage of land currently advertised for sale. Of all land for sale in Granite County, Drummond featured the most land for sale. Based on its natural assets, tourism and recreation contribute significant revenue toward Granite County's overall GDP. Granite County is Montana's 40th largest county (1,732 square miles). It's located in the Gold West Country Montana region of Montana.