1. ^^1 2 3 Governor of Mississippi Territory.
2. ^Inaugurated as the first state governor on October 7, 1817, but Mississippi did not officially become a state until December 10, 1817.
3. ^^1 2 3 4 Died in office.
4. ^As lieutenant governor, filled term until next election.
5. ^Resigned due to illness.
6. ^The office was abolished by the Constitution of 1832, and the duties of president of the Senate were incorporated into a separate office. The Constitution of 1869 re-established the office of lieutenant governor, which also re-assumed the duties of the presidency of the Senate.
7. ^¹ As president of the state Senate, filled term until next election.
8. ^Resigned following an arrest for violating neutrality laws by assisting with the liberation of Cuba. He was found not guilty, but the political fallout led to his resignation.
9. ^As president of the Senate, filled term until his Senate term expired.
10. ^¹ As president of the Senate, filled unexpired term.
11. ^Resigned due to political tension over secession.
12. ^Term effectively ended when he was arrested by Union forces.
13. ^¹ Appointed by President Andrew Johnson following the end of the American Civil War.
14. ^Forced to resign and physically removed from office by federal forces after his government failed to comply with Reconstruction.
15. ^Left office as Reconstruction ended.
16. ^Resigned to take an elected seat in the United States Senate; Alcorn's senate term began March 4, 1871 but he delayed taking it, preferring to continue as governor.
17. ^^1 2 As lieutenant governor, filled unexpired term.
18. ^Impeached; made a deal with the state legislature to resign, and all charges were dropped.
19. ^Since both the Governor and Lieutenant Governor had been impeached, the former resigning and the latter being removed from office, Stone, as president of the Senate, was next in line for the governorship. Filled unexpired term and was later elected in his own right.
20. ^As lieutenant governor, filled unexpired term, and was later elected in his own right.
21. ^Lewis McAllister won a special election became the first Republican to win a seat in the Mississippi House of Representatives in the 20th Century.
22. ^Seelig Wise became the first Republican to win a seat in the Mississippi Senate in the 20th Century during the 1963 general election.
23. ^Rep. McAllister was joined by a second Republican, Charles K. Pringle, in the House during the 1963 general election.
24. ^Elected in November 1978 then appointed by Governor to vacancy caused by resignation of his successor.
25. ^The office of Land Commissioner was abolished by the Legislature in 1980, and its duties were assumed by the Secretary of State's Office.
26. ^Johnson switched parties from Democratic to Republican in 1989.
27. ^Due to pre-clearance issues with the Department of Justice over the Voting Rights Act with unconstitutional redistricting, federal courts forced a second election for the whole legislature in 1992 for a three-year term.
28. ^Due to pre-clearance issues with the Department of Justice over the Voting Rights Act with unconstitutional redistricting, federal courts forced a second election for the whole legislature in 1992 for a three-year term.
29. ^Initially appointed to fill vacancy; later elected.
30. ^Tuck switched parties from Democratic to Republican in 2002.
31. ^Appointed to fill vacancy.
32. ^Four senators, Terry Burton, Videt Carmichael, George "Tommy" Dickerson, and Travis Little, switched parties from Democrat to Republican before the 2003 session. A special election, brought on by the resignation of Democrat John White, flipped another seat when Republican Charles Walden won to succeed him before the session.
33. ^Five representatives, Larry Baker, Jim Barnett, Herb Frierson, Frank Hamilton, and John Read, switched parties from Democrat to Republican.
34. ^Senator Ralph Doxey switched parties from Democrat to Republican.
35. ^Representative Bobby Moody resigned and was succeeded by Carl Gregory, flipping his seat from Democrat to Republican between the 2004 and 2005 sessions. {{cite web |url=http://www.peer.state.ms.us/HiLites04.html |title=Archived copy |accessdate=2007-07-16 |deadurl=yes |archiveurl=https://web.archive.org/web/20111007034340/http://www.peer.state.ms.us/HiLites04.html |archivedate=2011-10-07 |df= }}
36. ^Spell switched parties from Democratic to Republican in 2005.
37. ^Rep. Joey Fillingane succeeded the late Sen. Billy B. Harvey in a special election, flipping the seat from Democrat to Republican. Shortly thereafter, Senators James Walley and Tommy Gollott switched parties from Democrat to Republican, flipping control of the chamber.
38. ^Senator Nolan Mettetal switched parties from Democrat to Republican at the beginning of the legislative session.
39. ^Appointed; took office December 31, 2007.
40. ^Rep. Sid Bondurant switched parties from Democratic to Republican.  
41. ^Billy Nicholson switched parties from Democrat to Republican before the start of the 2009 session.
42. ^Senators Cindy Hyde-Smith and Ezell Lee switched parties from Democrat to Republican.
43. ^Four representatives, C. Scott Bounds, Bobby Shows, Russ Nowell, and Margaret Rogers, switched parties from Democrat to Republican between the 2010 and 2011 sessions of the legislature. After the session, Rep. Jeff Smith switched parties from the Democrat to the Republican Party to run in the general election.
44. ^Two days after the election in November 2011, Sen. Gray Tollison switched from Democrat to Republican.
45. ^Rep. Donnie Bell switched parties from Democrat to Republican right after the general election.
46. ^Sen. Nickey Browning switched from Democrat to Republican.
47. ^Rep. Jason White switched parties from Democrat to Republican.
48. ^Rep. Randall Patterson switched parties from Democrat to Republican.
49. ^Rep. Bennett Malone (D-45) retired after months of health problems near the start of session.  
50. ^Jay Malone, a Republican, succeeded Bennett in his seat, after session was over.  
51. ^Just after the election, Rep. Jody Steverson switched from Democrat to Republican. After a contest of election at the start of the new legislative session, Mark Tullos was seated in District 79 over incumbent Bo Eaton, giving the GOP a 3/5 majority.  
52. ^On November 28, 2017, Republican Neil Whaley was elected in a non-partisan election to Senate District 10 replacing Democrat Bill Stone.
53. ^Appointed to fill vacancy.
54. ^Appointed.