The District was established on June 16, 1906, and became operational on November 16, 1907, with Oklahoma achieving statehood.
Enid and Ponca City Division comprises the following counties: Alfalfa, Garfield, Grant, Kay, Noble, and Payne.
Lawton and Mangum Division comprises the following counties: Beckham, Caddo, Comanche, Cotton, Greer, Harmon, Jackson, Jefferson, Kiowa, Stephens, Tillman, and Washita.
Oklahoma City, Guthrie, Chickasha, Pauls Valley, and Shawnee Division comprises the following counties: Blaine, Canadian, Cleveland, Garvin, Grady, Kingfisher, Lincoln, Logan, McClain, Oklahoma, and Pottawatomie.
[3] As of May 27, 2020[update]: Chief judges have administrative responsibilities with respect to their district court.