Mo. Rev. Stat. § 477.050: Territorial jurisdiction of the eastern district court of appeals.

The jurisdiction of the eastern district of the court of appeals shall be coextensive with the counties of Monroe, Shelby, Knox, Scotland, Clark, Lewis, Marion, Ralls, Pike, Lincoln, Montgomery, Warren, St. Charles, St. Louis, Jefferson, Ste. Genevieve, Perry, Cape Girardeau, Madison, St. Francois, Washington, Franklin, Audrain, Gasconade, Osage and the city of St. Louis.