Of 99 counties in the state, Monona County ranks 16th in terms of size (698 square miles). Monona County is in Western Iowa. There is 1,000 acres of lakefront homes and property for sale in Iowa's Monona County based on recent Land Network data. The combined market value of land and rural real estate for sale here is about $1 million. Browse all waterfront property for sale in Monona County on the Land Network to find the marina, lakefront and other recreational property that meets your needs, from waterside land perfect as a retirement investment to existing residential waterfront land and property for hunting, fishing and other outdoor-recreation pursuits! The most common type of land for sale by combined acreage in Monona County is house.