McClain County is in Frontier Country Oklahoma. Of the 77 counties in the Sooner State, McClain County ranks 68th in terms of size (580 square miles). The total value of 1,000 acres of farms recently listed for sale in McClain County, Oklahoma, was nearly $5 million. The average price of farms for sale in McClain County was $1 million. Farms for sale in McClain 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.