Prairie County is a county in Montana. It covers 1,743 square miles (1,115,270 acres), which represents less than one percent of the state total. Of the 56 counties in Montana, Prairie County ranks 52nd in terms of the size of its population (1,160, according to 2015 Census estimates). Government and state-level services are the main economic drivers in Prairie County. Recent data from Lands of America calculates the average value of ranches, land, farms and other recreational acreage for sale in Prairie County at $854 per acre. The average list price of property and land for sale was $182,517 (the most expensive listing being for $218,775) and the median size of land and property for sale in Prairie County was 320 acres. Land for sale in Prairie County totaled 641 acres and $547,550 in overall land value, with the city of Terry featuring the most land for sale in the county. Farmland was the most common type of land for sale in Prairie County.