Putnam County is in Northwest Ohio. Of the 88 counties in the state, Putnam County is 36th in terms of its size (484 square miles). There is about 1,000 acres of residential land and property for sale in Putnam County, Ohio, based on recent Land Network data, making it the most common type of land for sale in Putnam County. The combined market value of farms, ranches, hunting land and other land for sale here is nearly $2 million. The average price of residential acreage for sale in Putnam County was $408,100. 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.