Florida's 21st congressional district is a congressional district in Florida. The residents of the 21st district have been represented in the United States House of Representatives by Republican Lincoln Diaz-Balart since 1993.
George W. Bush received 57 percent of the vote in this district in 2004.[verification needed] The district has a Cook Partisan Voting Index score of R+6, which makes it the 5th most Republican-leaning seat in Florida and the most Republican-leaning seat in all of South Florida.