Of 99 counties in the Hawkeye State, Polk County ranks 24th in terms of size (591 square miles). Polk County is in Central Iowa. There is roughly 1,000 acres of riverfront homes and property for sale in Iowa's Polk County based on recent Land Network data. The combined market value of ranches, farms, hunting land and other rural land and acreage for sale here is nearly $900,000. Browse all waterfront property for sale in Polk 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 Polk County is residential property.