Missouri Territory's at-large congressional district
On June 4, 1812, the Missouri Territory was created following the creation of the state of Louisiana. The Arkansas Territory was spun off in 1819. The state of Missouri was separated in 1821 and the remaining land was annexed by the Michigan Territory in 1834.
|#||Delegate||Term start||Term end||Birthplace||Notes|
|1||Edward Hempstead||9 November 1812||17 September 1814||Hebron, Connecticut||Did not run for reelection|
|2||Rufus Easton||17 September 1814||6 August 1816||Washington, Connecticut||Later served as Attorney General of Missouri|
|3||John Scott||6 August 1816||13 January 1817||Hanover, Virginia||Election declared illegal and seat vacated|
|-||Seat vacant||13 January 1817||4 August 1817||Seat vacant until election could be held|
|3||John Scott||4 August 1817||3 March 1821||Hanover, Virginia||Reelected|