Land for sale in Red Willow County recently totaled almost $4 million and around 1,000 acres. Red Willow County ranks 51st out of 93 counties in the Beef State for the total number of acres of land currently advertised for sale. Of all locations in Red Willow County with land for sale, Mccook had the most land for sale. Red Willow County is Nebraska's 37th biggest county (718 square miles). It's located in the Central Nebraska region of the state.