The value of all land and rural real estate for sale in Koochiching County recently was $18 million, representing a total of 1,489 acres of land for sale in Koochiching County. Koochiching County ranks 50th out of 87 counties in the Gopher State for the combined amount of land currently advertised for sale. Of all locations in Koochiching County with land for sale, International Falls had the most land for sale. Manufacturing and related services are the largest economic sectors in Koochiching County. Koochiching County is one of the ten largest counties in Minnesota (3,154 square miles). It's located in the Northeast Minnesota region of Minnesota.