Seminole County occupies a large area within east-central Oklahoma that it has held since before stategood - 16th November 1907 - when it became one of only seven original counties still existing today with their boundaries just as they did prior to becoming a full State Of Oklahoma.. Its county seat is Wewoka with numerous notable cities such as Sasakwa, Bowlegs and Konawa scattered throughout its 6500km² (2496 sq mi) landscape.. In 2019 an estimated 24634 residents were counted as part of Seminole according to information from the United States Census Bureau estimates; classification Seminole as one of more densely populated counties found running along sideOklahoma's eastern edge .