The total value of farms, ranches, and rural real estate for sale in Garfield County recently on Land.com was $36 million. This represents 100,000 acres of land and rural real estate for sale in Garfield County. Garfield County ranks 42nd based on the combined acreage of land for sale of all the counties in the Treasure State. Of all locations in Garfield County with land and rural real estate for sale, Mosby featured the most land for sale. Garfield County has a large agricultural economy, with 297 farms recorded in the county during the latest U.S. Census. Farming activities in Garfield County generate annual revenues of $4 million, the majority of which comes from livestock products. Garfield County is one of the ten largest counties in Montana (4,849 square miles). It's located in the Missouri River Country Montana region of Montana.