United States congressional delegations from Mississippi

These are tables of congressional delegations from Mississippi to the United States House of Representatives and the United States Senate.

List of members of the Mississippian United States House delegation, their terms in office, district boundaries, and the district political ratings according to the CPVI. The delegation has a total of 4 members, including 3 Republicans and 1 Democrat.

On April 7, 1798, the Mississippi Territory was created. Starting in 1801, the Territory sent one non-voting delegate to the U.S. House of Representatives.

On December 10, 1817, Mississippi was admitted into the Union as a state and sent one Representative to Congress, elected at-large statewide.

After the 1830 census, Mississippi had two seats, elected statewide at-large on a general ticket.

Starting in 1843, Mississippi's delegation was increased to four seats, still elected at-large statewide on a general ticket. After 1847, those seats were elected by representative districts.

After the 1850 census, Mississippi gained a 5th seat. For the 33rd Congress, that fifth seat was elected at-large. Starting with the 34th Congress, the new seat was apportioned as a fifth district.

For these three decades, Mississippi had eight seats, the most it has ever been apportioned.

As of April 2015^[update], there is one living former U.S. Senator from Mississippi.

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