Land for sale in Liberty County, Montana, recently totaled almost $4 million and 1,000 acres. Liberty County ranks 42nd out of 56 counties in Big Sky Country for the total number of acres of land currently advertised for sale. Among cities in Liberty County with ranches, farms, hunting land and other rural land and acreage for sale, Chester featured the most land for sale. Liberty County has a large agricultural economy, with 304 farms recorded in the county during the latest U.S. Census. Farming activities in Liberty County generate annual revenues of $5 million, most of which is from crops. Liberty County is the 47th biggest county (1,447 square miles) in Montana. It's located in the North Central Montana region of the state.