Barnwell County, South Carolina
Precinct data
Results by precinct
15 precincts · 9,803 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -Barnwell 3Barnwell 3 | 427 | 726 | 13 | 1,166 | 36.6% | 62.3% | R+25.6 |
|---|---|---|---|---|---|---|---|
| Precinct -Barnwell 2Barnwell 2 | 352 | 683 | 16 | 1,051 | 33.5% | 65.0% | R+31.5 |
| Precinct -Barnwell 4Barnwell 4 | 502 | 379 | 8 | 889 | 56.5% | 42.6% | D+13.8 |
| Precinct -Williston 1Williston 1 | 502 | 369 | 16 | 887 | 56.6% | 41.6% | D+15.0 |
| Precinct -SnellingSnelling | 335 | 470 | 10 | 815 | 41.1% | 57.7% | R+16.6 |
| Precinct -HildaHilda | 56 | 616 | 3 | 675 | 8.3% | 91.3% | R+83.0 |
| Precinct -Williston 3Williston 3 | 231 | 373 | 6 | 610 | 37.9% | 61.1% | R+23.3 |
| Precinct -Blackville 1Blackville 1 | 373 | 213 | 9 | 595 | 62.7% | 35.8% | D+26.9 |
| Precinct -FriendshipFriendship | 33 | 489 | 5 | 527 | 6.3% | 92.8% | R+86.5 |
| Precinct -Healing SpringsHealing Springs | 370 | 151 | 4 | 525 | 70.5% | 28.8% | D+41.7 |
| Precinct -Barnwell 1Barnwell 1 | 216 | 224 | 3 | 443 | 48.8% | 50.6% | R+1.8 |
| Precinct -KlineKline | 156 | 256 | 5 | 417 | 37.4% | 61.4% | R+24.0 |
| Precinct -ElkoElko | 173 | 237 | 5 | 415 | 41.7% | 57.1% | R+15.4 |
| Precinct -Williston 2Williston 2 | 119 | 291 | 4 | 414 | 28.7% | 70.3% | R+41.5 |
| Precinct -Blackville 2Blackville 2 | 237 | 128 | 9 | 374 | 63.4% | 34.2% | D+29.1 |
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | +58.3% |
| 1896 | No data |
| 1900 | +91.9% |
| 1904 | +95.1% |
| 1908 | +88.2% |
| 1912 | +98.3% |
| 1916 | +97.1% |
| 1920 | +93.3% |
| 1924 | +94.5% |
| 1928 | +93.6% |
| 1932 | +99.2% |
| 1936 | +99.9% |
| 1940 | +98.6% |
| 1944 | +97.9% |
| 1948 | +4.2% |
| 1952 | +41.7% |
| 1956 | +46.3% |
| 1960 | −16.1% |
| 1964 | −45.3% |
| 1968 | −2.2% |
| 1972 | −43.4% |
| 1976 | +22.8% |
| 1980 | +2.6% |
| 1984 | −21.4% |
| 1988 | −26.9% |
| 1992 | −8.3% |
| 1996 | −2.4% |
| 2000 | −10.4% |
| 2004 | −7.2% |
| 2008 | +1.7% |
| 2012 | +5.3% |
| 2016 | −5.2% |
| 2020 | −7.5% |
| 2024 | −15.5% |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2022 | R | 39.2%2,458 | 60.8%3,815 | 6,273 |
| 2020 | R | 46.6%4,806 | 52.2%5,378 | 10,312 |
Registered voters
Total registered voters, over time
| Year | Total registered |
|---|---|
| 2016 | 13,897 |
| 2018 | 14,821 |
| 2020 | 15,470 |
| 2022 | 14,580 |
| 2024 | 14,700 |
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
+112 net domestic migration · 2025
Net −1,684 over 2011–2025 · gain loss
Arrivals reported $43,300 in average income, against $51,725 for residents who stayed — 16% lower. (IRS SOI, 2022–23)
The places arrivals came from lean R+3.4 on average — 12 points more Democratic-leaning than Barnwell County, SC itself (R+15.5).
Where arrivals came from lean of each source
- Aiken County, SC79R+25.9
- Orangeburg County, SC41D+24.6
- Bamberg County, SC34D+15.3
Where departures went households, 2022–23
- Aiken County, SC145
- Orangeburg County, SC31
- Bamberg County, SC30
- Richland County, SC30
- Lexington County, SC21
Migration is one input to a place’s political change, not its cause — a shift can also come from residents changing their minds, generational turnover, or turnout. These figures describe the places people moved between; they do not measure how any mover voted.
| Year | Net domestic migration |
|---|---|
| 2011 | −234 |
| 2012 | −170 |
| 2013 | −169 |
| 2014 | −240 |
| 2015 | −240 |
| 2016 | −152 |
| 2017 | −220 |
| 2018 | −194 |
| 2019 | −204 |
| 2021 | +65 |
| 2022 | −91 |
| 2023 | +3 |
| 2024 | +50 |
| 2025 | +112 |
Barnwell's electorate skews older and rural, with a substantial Black population concentrated in the county seat that consistently offsets some of the countywide Republican lean, keeping margins closer in local races than federal ones.
Across the recorded series it reached a Democratic high of 99.9 points in 1936 and a Republican high of 45.3 points in 1964. Between 2020 and 2024 the county moved 8.1 points toward the Republican candidate; the 2024 margin was 15.5 points.
A population of 20,521, a 51% non-Hispanic-white share, and a median household income of $46,626 describe the county. The county's voting pattern over the last decade is most similar to that of Barbour County and Pickens County.
The counties whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Browse places by community — income, education, race & ethnicity, language — all community cuts →
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Barnwell County, South Carolina. Akashic. https://akashic.app/county/45011/. Accessed May 20, 2026. License: CC BY 4.0.