99chambers

U.S. House seat · lines in effect since 2022

South Carolina's 3rd District

A district of about 766,000 people, 26% of adults with a bachelor's degree. It votes R+42.2 relative to the nation for president.

Sheri Biggs (R) · since Jan 3, 2025Next election Nov 7, 2028The 2026 race →
SC-3

Source: 2026 results: South Carolina Election Commission; boundaries: Census Bureau TIGER/LineUpdated Nov 7, 2026, 3:01 PM ET

Where it sits among all 435 seats

Every U.S. House seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.

R+42.2410th most
Democratic
Most DemocraticMost Republican218th seat · the majority line612547SC-3

Labels below the bar mark 6 other seats in South Carolina.

Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET

Every race on these lines

Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.

20242026
U.S. HouseR+46.4R+29.3

Outlined: the race for this seat itselfBlank: no race that year

Source: 99chambers results archive: precinct results allocated to current lines; 2026: South Carolina Election CommissionUpdated Nov 7, 2026, 3:01 PM ET

Who lives here, compared

Grey bars show the spread of all 435 seats. Small marks are other seats in South Carolina. The black marker is SC-3.

Adults with a bachelor's degree26% 21st pct · 6th of 7 in SC

Lower than 79% of seats.

White adults without a degree52% 81st pct · 1st of 7 in SC

Higher than 81% of seats.

Hispanic residents6% 23rd pct · 5th of 7 in SC

Lower than 77% of seats.

Black residents17% 77th pct · 7th of 7 in SC

Higher than 77% of seats.

Asian residents1% 9th pct · 7th of 7 in SC

Lower than 91% of seats.

People per square mile131 31st pct · 6th of 7 in SC

Less dense than 69% of seats.

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET

Seats most like this one

Nearest seats on demographics, density and lean.

AL-3
24% college gradsR+45.4Held RMS-4
22% Black · 25% college gradsR+42.5Held RGA-14
28% college gradsR+37.3Held RFL-1
32% college gradsR+36.0Held R

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET

Who has held it

These lines took effect in 2022.

  1. Sheri Biggs (R)
    2025– · Won 2024 by 46.4, 2026 by 29.3
  2. Jeff Dan (R)
    2023–2025 · Won 2022 by 95.3

Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)