Land for sale in Red Willow County, Nebraska, recently totaled nearly $1 million and almost 1,000 acres. Red Willow County ranks 73rd out of 93 counties in the Beef State for the combined amount of land currently advertised for sale. Among cities in Red Willow County with farms, ranches, and rural real estate for sale, Mccook had the most land for sale. Red Willow County is the 37th largest county (718 square miles) in Nebraska. It's located in the Central Nebraska region of the state.