Florida's 21st congressional district is a U.S. congressional district on the Treasure Coast. In the 2020 redistricting cycle, the district was drawn as a successor to the previous 18th district and contains all of St. Lucie County and Martin County as well as the northeastern part of Palm Beach County, and includes Port St. Lucie, Fort Pierce, Stuart, Jupiter, and Palm Beach Gardens, as well as Treasure Coast International Airport. The previous iteration of the 21st district, which extended from Delray Beach to Palm Beach, was instead renamed the 22nd district.

From 2003 to 2013, the 21st district was located in Miami-Dade County and included many of Miami's western suburbs, such as Hialeah, Olympia Heights and Cutler Bay. In December 2015, Florida underwent redistricting due to a Florida Supreme Court ruling. Much of the 21st district became the 22nd district and was pushed further into Broward County. In the process, it absorbed the part of Broward County that had previously been in the neighboring 22nd district, which had been renumbered the 21st. This came after the state supreme court urged the creation of one district covering most of Palm Beach County and another covering most of Broward County and a part of Palm Beach.

The district was represented by Democrat Lois Frankel from 2017 until 2023. After redistricting, the district has been represented by Republican Brian Mast since 2023.

Composition For the 118th and successive Congresses (based on redistricting following the 2020 census), the district contains all or portions of the following counties and communities:

Martin County (11) All 11 communities

Palm Beach County (16) The Acreage (part; also 20th), Cabana Colony, Juno Beach, Juno Ridge, Jupiter, Jupiter Farms, Jupiter Inlet Colony, Limestone Creek, North Palm Beach, Palm Beach Gardens, Palm Beach Shores, Riviera Beach (part; also 20th), Schall Circle, Tequesta, Westlake, West Palm Beach (part; also 20th)

St. Lucie County (10) All 10 communities

List of members representing the district

Member Party Years Congress Electoral history Location District created January 3, 1993 Lincoln Díaz-Balart Republican January 3, 1993 –January 3, 2011 Elected in 1992.Re-elected in 1994.Re-elected in 1996.Re-elected in 1998.Re-elected in 2000.Re-elected in 2002.Re-elected in 2004.Re-elected in 2006.Re-elected in 2008.Retired. 1993–2003 2003–2013 Mario Díaz-Balart Republican January 3, 2011 –January 3, 2013 Redistricted from the and re-elected in 2010.Redistricted to the . Ted Deutch Democratic January 3, 2013 –January 3, 2017 Redistricted from the and re-elected in 2012.Re-elected in 2014.Redistricted to the . 2013–2017 Lois Frankel Democratic January 3, 2017 –January 3, 2023 Redistricted from the and re-elected in 2016.Re-elected in 2018.Re-elected in 2020.Redistricted to the . 2017–2023 Brian Mast Republican January 3, 2023 –present Redistricted from the and re-elected in 2022.Re-elected in 2024. 2023–2027St. Lucie County and Martin County; parts of Palm Beach County

Recent election results from statewide races Year Office Results2008 PresidentObama 51% - 48%2010 SenateRubio 51% - 15% GovernorScott 51% - 49% Attorney GeneralBondi 54% - 39% Chief Financial OfficerAtwater 61% - 34%2012 PresidentRomney 52% - 48% SenateNelson 54% - 46%2014 GovernorScott 50.5% - 49.5%2016 PresidentTrump 53% - 43% SenateRubio 53% - 45%2018 SenateScott 53% - 47% GovernorDeSantis 53% - 46% Attorney GeneralMoody 55% - 43% Chief Financial OfficerPatronis 55% - 45%2020 PresidentTrump 54% - 45%2022 SenateRubio 61% - 39% GovernorDeSantis 62% - 37% Attorney GeneralMoody 63% - 37% Chief Financial OfficerPatronis 62% - 38%2024 PresidentTrump 58% - 41% SenateScott 57% - 42%

Election results

2002

2004

2006

2008

2010

2012 Redistrict from 19th district

2016 Democrat Ted Deutch represented the district after being elected in 2012. As a result of 2015's statewide redistricting, Deutch effectively swapped seats with Lois Frankel, the 22nd District's current representative. In 2016, Deutch sought election to the 22nd District seat while Frankel sought election from District 21.

2020

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2022

2024

References

The Miami Herald; 3 Fla Congressional Candidates in Spotlight by Lesley Clark; August 27, 2008, page A2