99chambers

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

South Carolina's 4th District

A district of about 755,000 people, 36% of adults with a bachelor's degree. It votes R+22.3 relative to the nation for president.

William R. Timmons IV (R) · since Jan 3, 2019Next election Nov 7, 2028The 2026 race →
SC-4

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+22.3332nd most
Democratic
Most DemocraticMost Republican218th seat · the majority line6125SC-473

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+22.5R+6.1

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-4.

Adults with a bachelor's degree36% 60th pct · 3rd of 7 in SC

Higher than 60% of seats.

White adults without a degree40% 55th pct · 4th of 7 in SC

Higher than 55% of seats.

Hispanic residents11% 42nd pct · 1st of 7 in SC

Lower than 58% of seats.

Black residents17% 78th pct · 6th of 7 in SC

Higher than 78% of seats.

Asian residents3% 38th pct · 1st of 7 in SC

Lower than 62% of seats.

People per square mile604 62nd pct · 1st of 7 in SC

Denser than 62% 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. 1 of the 4 flipped this year.

NC-10
33% college gradsR+17.1Held RNC-14
36% college gradsR+15.8Flipped DNC-8
35% college gradsR+19.0Held RFL-21
36% college gradsR+14.8Held 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. William Timmons (R)
    2027– · Won 2026 by 6.1
  2. William R. Timmons IV (R)
    2023–2027 · Won 2022 by 81.6, 2024 by 22.5

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