Land for sale in McCone County, Montana, recently totaled approximately $4 million and 1,000 acres. McCone County ranks 46th out of 56 counties in the state for the total acreage of land currently advertised for sale. Circle featured the most land for sale. Agriculture and farming drives the McCone County economy, with 489 farms recorded in the county during the U.S. Census in 2012. Farming activities in McCone County generate annual revenues of $9 million, most of which is from crops. McCone County is Montana's 22nd biggest county (2,682 square miles). It's located in the Missouri River Country Montana region of the state.