Florida's 13th congressional district is an electoral district for the U.S. Congress on Florida's Gulf Coast, assigned to Pinellas County. The district includes Largo, Clearwater, and Palm Harbor. In the 2020 redistricting cycle, most of St. Petersburg facing Tampa Bay was redistricted into the 14th district, while the rest of Pinellas County formerly in the 12th district became included in the 13th district.

Clearwater is a city and the county seat of Pinellas County, Florida, United States, west of Tampa and north of St. Petersburg. To the west of Clearwater lies the Gulf of Mexico and to the southeast lies Tampa Bay. As of the 2020 census, the city had a population of 117,292. It is the smallest of the three principal cities in the Tampa–St. Petersburg–Clearwater metropolitan area, most commonly referred to as the Tampa Bay area.