South Carolina Senate District 18
State Senate District 18
Covers all of Newberry County; parts of Lexington County and Richland County.
Who Holds This Seat
Running in 2026
No 2026 candidates are on file for this seat yet.
The District
Includes Newberry, Lake Murray of Richland, Irmo (part), Silverstreet, Chapin, Prosperity, Helena, Little Mountain, Whitmire, Pomaria and Peak.
60 precincts · District lines: State senate lines: U.S. Census Bureau (1:500,000 cartographic boundary) · Precinct lines: South Carolina Revenue and Fiscal Affairs Office, statewide Voter Precincts (gis.state.sc.us, 2026); per-election precinct editions for the 2020/2022/2024 certified results: SC RFA statewide precinct files 2022-06, 2022-12, 2024-09 and Census 2020 VTDs (sc-rfa-2022-06, sc-rfa-2022-12, sc-rfa-2024-10, sc-census-vtd2020)
Results in This District
| Contest | First | Second | Margin | Votes | Source |
|---|---|---|---|---|---|
| 2024 President60 precinctsSouth Carolina State Election CommissionCertified — SEC final ENR | Donald J Trump/JD Vance (R)42,910 · 63.9% | Kamala D Harris/Tim Walz (D)23,266 · 34.7% | R+29.3 | 67,135 | South Carolina State Election CommissionCertified — SEC final ENR |
| 2022 U.S. Senate60 precinctsSouth Carolina State Election CommissionCertified — SEC final ENR | Tim Scott (R)32,699 · 69.0% | Krystle Matthews (D)14,627 · 30.9% | R+38.2 | 47,369 | South Carolina State Election CommissionCertified — SEC final ENR |
| 2022 Governor60 precinctsSouth Carolina State Election CommissionCertified — SEC final ENR | Henry McMaster/Pamela Evette (R)29,846 · 62.6% | Joe Cunningham/Tally Parham Casey (D)17,083 · 35.9% | R+26.8 | 47,650 | South Carolina State Election CommissionCertified — SEC final ENR |
| 2020 President59 precinctsSouth Carolina State Election CommissionCertified — SEC final ENR | Donald J Trump | Michael R Pence (R)40,322 · 61.8% | Joseph R Biden | Kamala D Harris (D)23,910 · 36.6% | R+25.1 | 65,280 | South Carolina State Election CommissionCertified — SEC final ENR |
| 2020 U.S. Senate59 precinctsSouth Carolina State Election CommissionCertified — SEC final ENR | Lindsey Graham (R)40,457 · 61.9% | Jaime Harrison (D)24,035 · 36.8% | R+25.1 | 65,345 | South Carolina State Election CommissionCertified — SEC final ENR |
Totals add up the certified precinct results for the precincts inside today's district lines. A precinct split by the district line counts in full, or only in the district holding most of its voters where the linkage assigns it to one, and votes a county reported only countywide (some counties' absentee and early votes) are left out, so totals can differ from an official canvass.
Past Results
State Senate, District 18
SC-2024-11-05-Cntyprec · Nov 5, 2024| Candidate | Party | Votes | Share |
|---|---|---|---|
| Ronnie CromerRepublican | Republican | 51,289 | 98.6% |
| Write-InNonpartisan | Nonpartisan | 726 | 1.4% |
Certified — SEC final ENR (county detail files); reconciled to the certified county totals · South Carolina State Election Commission — ENR county detail results
State Senate, District 18
SC-2020-11-03-Cntyprec · Nov 3, 2020| Candidate | Party | Votes | Share |
|---|---|---|---|
| Ronnie CromerRepublican | Republican | 46,032 | 72.2% |
| Christopher ThibaultDemocrat | Democrat | 17,639 | 27.7% |
| Write-InNonpartisan | Nonpartisan | 64 | 0.1% |
Certified — SEC final ENR (county detail files); reconciled to the certified county totals · South Carolina State Election Commission — ENR county detail results