Land for sale in Montana's Glacier County recently totaled approximately $15 million and 4,000 acres. Glacier County ranks 50th in the state for the total number of acres of land currently advertised for sale. East Glacier Park had the most land for sale. Government and state-level services are the main economic drivers in Glacier County. Glacier County is Montana's 17th biggest county (3,035 square miles). It's located in the Glacier Country Montana region of Montana.