South Carolina District 1

70 Irregular

Less compact than 76% of other congressional districts.

105th least compact of 429 nationally, 2nd of 7 in South Carolina.

A score describes shape, not intent. Coastlines, rivers and the Voting Rights Act can all make a district irregular. How scores work

The three measures

Polsby-Popper: 0.10at least as compact as 9% of districts on this measure
Area compared with perimeter. Low for jagged or snaking edges.
Reock: 0.49at least as compact as 52% of districts on this measure
Area compared with the smallest circle around the district, counting only land. Low for stretched shapes.
Convex hull: 0.70at least as compact as 28% of districts on this measure
Area compared with a rubber band stretched around the district, counting only land. Low for bites and tentacles.

Each measure runs from 0 to 1, where 1 is a perfect circle or a shape with no dents.

The state's edge

31% of this district's border is the state's edge: a coastline, a national border or a state line. Mapmakers don't choose those lines. A ragged one, like a coastline or a river, lowers Polsby-Popper. Reock and convex hull count only the state's own land, so water and neighboring states don't count against them. More on the state's edge

Cities and towns

The largest places with people in this district, from the 2020 Census. A place split between districts shows how many of its residents live in this one.

Mount Pleasant townall 90,801 residents
Charleston city48,710 of its 150,227 residents
Summerville town48,327 of its 50,915 residents
Goose Creek cityall 45,946 residents
Hilton Head Island townall 37,661 residents
Bluffton townall 27,716 residents
North Charleston city22,707 of its 114,852 residents
Hanahan cityall 20,325 residents
Port Royal townall 14,220 residents
Beaufort cityall 13,607 residents

And 34 smaller places. 37% of this district's people live outside any city, town or named community. How places are counted

ZIP codes

50 ZIP codes have residents in this district. 15 of them are split with other districts. A percentage is the share of that ZIP code's 2020 residents who live here.

Show all 50 ZIP codes

29059 (3%)
29406 (1%)
29410 (99%)
29412
29420 (29%)
29429
29431
29434
29436 (95%)
29438
29439
29445
29446 (90%)
29450
29451
29452 (1%)
29453
29455 (95%)
29456 (76%)
29458
29461
29464
29466
29468
29469
29472 (54%)
29479
29482
29483 (99%)
29485 (91%)
29486
29487
29492
29902
29904
29905
29906
29907
29909
29910
29915
29920
29926
29927 (13%)
29928
29935
29936 (6%)
29940
29941
29945 (28%)

These are the Census Bureau's ZIP code areas, which match residential ZIP codes closely. ZIP codes used only for PO boxes or a single organization aren't included. How ZIP codes are matched

2024 presidential vote

Kamala Harris 43.4%, Donald Trump 56.6%

Shares of the votes for the two of them; other candidates are left out. South Carolina used the same lines in 2024, so this is added up from precinct results. A precinct split between districts is divided by its House votes, so the figures are close estimates. Where the votes come from

U.S. House

The November 3, 2026 race hasn't been called yet.

Unofficial results from the South Carolina State Election Commission, checked November 6, 2026. A race shows a winner once news decision desks have called it. Results become official when the state certifies them. Where this comes from

South Carolina's senators

Darline Graham, RepublicanSeat on the November 3, 2026 ballot: Annie Andrews, Democrat, won and takes office January 3, 2027.
Tim Scott, Republican

Senators are elected by the whole state, so district lines don't change who they are. Senators serving as of November 6, 2026. Senators elected in November 2026 take office January 3, 2027. Where this comes from

Where it sits in South Carolina

Very compact (0 to 19)
Compact (20 to 39)
Middle (40 to 59)
Irregular (60 to 79)
Very irregular (80 to 100)

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