Florida's 21st congressional district

Florida's 21st congressional district is a U.S. congressional district on the Treasure Coast. It covers 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 district has been represented by Republican Brian Mast since 2023.

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