Johnston County is in Lake & Trail Country Oklahoma. Of the 77 counties in the Sooner State, 658-square-mile Johnston County ranks 58th by size. The total value of approximately 2,000 acres of farms recently listed for sale in Oklahoma's Johnston County was about $13 million. The average price of farms for sale in Johnston County was $932,571. Farms for sale in Johnston County support livestock including cattle, horses, goats, sheep and pig. Browse all Oklahoma farms for sale on the Land Network to find the farm, cattle operation, hobby farm or other farm property that's right for your future business or individual needs.