The overall value of land for sale in Winnebago County, Iowa, recently on Land.com was nearly $7 million. This represents almost 1,000 acres of farms, ranches, and rural real estate for sale in Winnebago County. Winnebago County ranks 85th in the Wrestling State for the combined amount of land currently advertised for sale. Of all locations in Winnebago County with ranches, farms, hunting land and other rural land and acreage for sale, Lake Mills featured the most land for sale. Winnebago County is the 98th largest county (401 square miles) in Iowa. It's located in the Central Iowa region of Iowa.