The value of all farmsand rural real estate for sale in Clay County, Minnesota, recently was approximately $9 million, representing a combined 386 acres of land for sale in Clay County. Clay County ranks 73rd out of 87 counties in the Land of 10,000 Lakes for the combined amount of land currently advertised for sale. Of all locations in Clay County with farms and rural land for sale, Hawley featured the most land for sale. Clay County is Minnesota's 20th largest county (1,052 square miles). It's located in the North Central West Minnesota region of the state.