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South Carolina's 1st Congressional District

The current officeholder, the 2024 result, and a precinct-level model you can run yourself — built from how South Carolina actually voted.

Model South Carolina's 1st Congressional District →

South Carolina's 1st Congressional District — highlighted within South Carolina's U.S. House districts · 2024: R+16.6 · open the interactive map →

Current officeholder

Nancy Mace Republican

2024 result

Republican R+16.6

2024 votes cast

390,777

Office

U.S. House

Who lives in this district

This district is home to about 748,351 people, median age 40.9, median household income $87,997.

Population

748,351

Median age

40.9

Median household income

$87,997

Bachelor's degree or higher

42.2%

Race & ethnicity: White 68.3% · Black 17.8% · Hispanic 8.2% · Asian 1.7%

Source: U.S. Census Bureau, 2019–2023 American Community Survey (5-year).

Precinct results — 2024 general

377 precincts reported in South Carolina's 1st Congressional District's 2024 general election. The twenty largest:

Precinct Winner Margin Votes
45019-Johns Island 2 Republican R+11.8 4,661
45019-Mt. Pleasant 39 Republican R+31.3 4,452
45019-Mt. Pleasant 35 Republican R+28.5 4,391
45019-Johns Island 3A Republican R+12.2 4,045
45019-Mt. Pleasant 33 Republican R+34.0 3,825
45053-Sun City Republican R+24.1 3,371
45015-CANE BAY NORTH Republican R+26.4 3,027
45019-Mt. Pleasant 37 Republican R+10.3 2,995
45015-YELLOW HOUSE Republican R+24.1 2,981
45015-CANE BAY Republican R+17.8 2,884
45035-Flowertown Republican R+35.2 2,778
45015-NEXTON Republican R+23.1 2,490
45015-DANIEL ISLAND 4 Republican R+26.4 2,438
45019-Mt. Pleasant 27 Republican R+22.5 2,409
45015-FOX BANK Republican R+19.8 2,408
45035-Oakbrook Democratic D+4.3 2,387
45015-DANIEL ISLAND 1 Republican R+39.5 2,297
45015-THE VILLAGE Republican R+34.7 2,236
45019-Mt. Pleasant 17 Republican R+21.2 2,231
45019-Johns Island 1B Republican R+0.2 2,202

All 377 precincts are modelable — open the race in the simulator and drill to precinct grain.

Find your district

Enter a ZIP code or a district (e.g. NC-4) to find your U.S. House district and who represents it.

Model South Carolina's 1st Congressional District in five steps

  1. Set the candidates. Name the contenders for the South Carolina's 1st Congressional District (or keep the generic Democrat / Republican defaults). The map starts from the canonical mixed-grain 2024 presidential baseline.
  2. Apply a swing. Move vote share statewide, or by demographic cohort, with a slider. The map and the running tally recompute instantly.
  3. Model turnout. Mobilize or depress turnout for any group — turnout and persuasion are modeled separately, the way a real campaign thinks about them.
  4. Explore local geography. Zoom from the state through counties to the finest supported reporting grain and adjust the places available in the model.
  5. Roll up & share. Roll the result up to chamber control, then share the exact versioned scenario.

Open South Carolina's 1st Congressional District in the simulator →

Frequently asked

Who represents South Carolina's 1st Congressional District?
Nancy Mace (Republican) currently holds this U.S. House seat.
What was the 2024 result in South Carolina's 1st Congressional District?
R+16.6 — 162,582 Democratic, 227,502 Republican, of 390,777 votes cast.
Can I model this race myself?
Yes — open it in the electionsmcp simulator and model vote-share swing and turnout from the real 2024 baseline, down to the precinct, then roll it up to chamber control.

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