The total value of land for sale in Oklahoma's Delaware County recently on Land.com was approximately $255 million. This represents around 9,000 acres of farms and ranches for sale in Delaware County. Delaware County ranks fifth out of 77 counties in the state for the total number of acres of land currently advertised for sale. Of all locations in Delaware County with farms and ranches for sale, Grove had the most land for sale. Based on its natural assets, tourism and recreation are important contributors to the Delaware County economy. Delaware County is the 43rd biggest county (792 square miles) in Oklahoma. It's located in the Green Country Oklahoma region of the state.