Allen County is in Northwest Ohio. Of the 88 counties in the Buckeye State, 260,384-acre Allen County ranks 82nd by size. Recent listings of residential land and property for sale in Allen County, Ohio, totals approximately 1,000 acres and a combined market value of around $17 million. The most common type of land for sale by combined acreage in Allen County is residential property. The average price of residential acreage for sale in Allen County was $400,942. Browse all residential land and rural property for sale in Ohio to find residential land and properties that suit your lifestyle needs, from existing residential homes and estates to land ready for future residential-property development.