South Carolina's 1st congressional district

South Carolina's 1st congressional district
Interactive map of district boundaries since January 3, 2023
Representative	Nancy Mace R–Charleston
Population (2022)	762,713[1]
Median household income	$85,282[1]
Ethnicity	68.2% White 16.9% Black 8.1% Hispanic 4.1% Two or more races 1.8% Asian 0.9% other
Cook PVI	R+7[2]

South Carolina's 1st congressional district is a coastal congressional district in South Carolina, represented by Republican Nancy Mace since January 3, 2021. She succeeded Democrat Joe Cunningham, having defeated him in the 2020 election. Cunningham was the first Democrat to represent the district since the 1980s.

The district has historically been based in Charleston. It has included Myrtle Beach, which became a major tourist destination in the late 20th century, as well as other coastal areas that have attracted retirees and seasonal visitors. From 1993 to 2013, the district boundaries extended from Seabrook Island in the south to the North Carolina border and included parts of Charleston, Dorchester, Berkeley and Georgetown counties and all of Horry County to the North Carolina line.

In 2010, the state received another seat in Congressional apportionment due to an increase in population. The state's districts had to be redrawn, which was completed in 2013. In the final plan, the 1st congressional district was redrawn to reach from Hilton Head Island to mid-coast South Carolina, ending at the Santee River and comprising parts of Charleston, Berkeley, Dorchester and Beaufort counties. This configuration is similar to the one it had for most of the 20th century. Horry County was included in the new 7th congressional district.

On January 6, 2023, the district was declared unconstitutional by the U.S. District Court for the District of South Carolina on account of racial gerrymandering and would have to be redrawn April of that year.^[3] The Supreme Court justices added Alexander v. South Carolina State Conference of the NAACP to their merits calendar for the 2023–24 term. At least fifteen amicus briefs were filed by various organizations and individuals with standing before the court.^[4] The case was argued on October 11, 2023,^[5][6] with a decision pending in 2024.^[7] On March 28, 2024, the same district court that ruled the congressional district was unconstitutional, allowed for its use in the 2024 elections. It concluded that it would be impractical to create a new district map at the current time, mainly due to the upcoming military and overseas ballot mailing deadline of April 27 and statewide primaries on June 11. However, it still found the district to be in violation of the 14th amendment, and future litigation is possible after the 2024 elections.^[8][9]