The incumbent is Republican Trent Kelly, who had represented the district since 2015. He won a special election to replace Alan Nunnelee with 70% of the vote in 2015 and the district has a PVI of R+16.
The incumbent is Democrat Bennie Thompson, who had represented the district since 1993. He won re-election with 68% of the vote in 2014 and the district has a PVI of D+13.
The incumbent is Republican Gregg Harper, who had represented the district since 2009. He won re-election with 69% of the vote in 2014 and the district has a PVI of R+14.
The incumbent was Republican Steven Palazzo, who had represented the district since 2011. He was re-elected with 70% of the vote in 2014 and the district had a PVI of R+21.