List of members, their terms in office, district boundaries, and the district political ratings according to the CPVI. The delegation has 8 members: 6 Republicans and 2 Democrats.
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.
^Carnahan's husband Mel Carnahan was elected to succeed incumbent Senator John Ashcroft, but died on October 16, 2000, on a plane crash, before the election was held.