- Lead
- 2,677
- Total
- 15,556
- vs nation
- R+15.7
- Turnout
- 63.3%
Chester County, SC
President margin by year
Place winner margin
President results by year
2024 turnout 63.3% of 24,785 citizens 18+
- Lead
- 1,719
- Total
- 15,757
- vs nation
- R+15.4
- Turnout
- 63.9%
- Lead
- 686
- Total
- 14,192
- vs nation
- R+6.9
- Turnout
- 57.7%
- Lead
- 1,524
- Total
- 14,407
- vs nation
- D+6.7
- Turnout
- —
- Lead
- 1,160
- Total
- 13,981
- vs nation
- D+1.0
- Turnout
- —
- Lead
- 8
- Total
- 11,729
- vs nation
- D+2.4
- Turnout
- —
- Lead
- 256
- Total
- 10,432
- vs nation
- D+1.9
- Turnout
- —
- Lead
- 1,951
- Total
- 9,072
- vs nation
- D+13.0
- Turnout
- —
Key facts
- 2024 presidential margin
- R+17.2MIT Election Lab
- Population
- 32,1822024 5-year
- Population density
- 55 / sq mi2024 5-year · TIGER/Line
- Land area
- 581 sq miTIGER/Line
- Median household income
- $52,4582024 5-year
- White (non-Hispanic)
- 57.7%2024 5-year
- Black
- 34.5%2024 5-year
- Hispanic / Latino
- 3.0%2024 5-year
- Peak Democratic margin
- D+100.0 in 1920MIT Election Lab
- Peak Republican margin
- R+33.2 in 1972MIT Election Lab
- Most similar
- Anson County, NC · twin score 95.8
Midterm durability
Total general-election participants divided by same-year citizen voting-age population. These are total ballots or participating voters—not presidential candidate votes.
- 2024 total turnout
- 63.3%15,692 participants ÷ 24,785 CVAP
- 2020→2022 drop-off
- +24.8 ptsPresidential-dependent
- Drop-off versus state
- +3.2 ptsPositive means a larger decline than the statewide pattern
- Mechanical 2026 scenario
- 38.5%–44.3%Recent-cycle and two-cycle persistence scenarios; not a forecast
| Election | Participants | CVAP | Turnout | Quality |
|---|---|---|---|---|
| 2016 · Presidential | 14,340 | 24,851 | 57.7% | A/A |
| 2018 · Midterm | 11,021 | 24,844 | 44.4% | A/A |
| 2020 · Presidential | 15,908 | 24,900 | 63.9% | A/A |
| 2022 · Midterm | 9,719 | 24,853 | 39.1% | A/A |
| 2024 · Presidential | 15,692 | 24,785 | 63.3% | A/A |
Sources and methods
- 2016: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 293/111.
- 2018: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 297/138.
- 2020: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 301/2.
- 2022: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 306/183.
- 2024: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 311/228.
presidential history
Party record book
Chester County, SC · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 · 34 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
James M. Cox1920
100.0%
1,237 votes · D+100.0
Runner-up · Franklin D. Roosevelt, 1936 · 99.5%
Republican
Richard Nixon1972
66.2%
4,724 votes · R+33.2
Runner-up · Donald Trump, 2024 · 58.0%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2012
7,891votes
54.8% of the vote · D+10.6
Runner-up · Barack Obama, 2008 · 7,478 votes
Republican
Donald Trump2024
9,030votes
58.0% of the vote · R+17.2
Runner-up · Donald Trump, 2020 · 8,660 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
James M. Cox1920
+126.2pts D vs U.S.
Place D+100.0 · U.S. R+26.2
Runner-up · John W. Davis, 1924 · +121.7 pts
Republican
Donald Trump2024
+15.7pts R vs U.S.
Place R+17.2 · U.S. R+1.5
Runner-up · Donald Trump, 2020 · +15.4 pts
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row shows U.S. House votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
Registered voters
Total registered voters, over time
| Year | Total registered |
|---|---|
| 2016 | 21,071 |
| 2018 | 22,554 |
| 2020 | 24,061 |
| 2022 | 21,985 |
| 2024 | 22,607 |
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
+515 net domestic migration · 2025
Net +671 over 2011–2025 · gain loss
Arrivals reported $48,246 in average income, against $56,925 for residents who stayed — 15% lower. (IRS SOI, 2022–23)
The places arrivals came from lean R+10.0 on average — 7.2 points more Democratic-leaning than Chester County, SC itself (R+17.2).
Where arrivals came from lean of each source
- York County, SC395R+19.1
- Lancaster County, SC96R+24.8
- Mecklenburg County, NC78D+32.7
- Fairfield County, SC30D+13.2
- Richland County, SC22D+34.6
Where departures went households, 2022–23
- York County, SC270
- Lancaster County, SC78
- Fairfield County, SC33
- Mecklenburg County, NC31
- Richland County, SC29
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 | −268 |
| 2012 | −278 |
| 2013 | 0 |
| 2014 | −239 |
| 2015 | +3 |
| 2016 | −55 |
| 2017 | +71 |
| 2018 | +58 |
| 2019 | +5 |
| 2021 | +47 |
| 2022 | +57 |
| 2023 | +383 |
| 2024 | +372 |
| 2025 | +515 |
Chester County's R+17.2 margin in 2024 reflects a gradual rightward drift common across South Carolina's smaller Piedmont counties, where manufacturing decline and demographic stability have reshaped voting patterns over roughly 20 years.
Across the recorded series it reached a Democratic high of 100.0 points in 1920 and a Republican high of 33.2 points in 1972. Between 2020 and 2024 the county moved 6.3 points toward the Republican candidate; the 2024 margin was 17.2 points.
A population of 32,182, a 58% non-Hispanic-white share, and a median household income of $52,458 describe the county. The county's voting pattern over the last decade is most similar to that of Anson County and Marshall 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 →
Chester County, South Carolina. Akashic. https://akashic.app/county/45023/. Accessed May 20, 2026. License: CC BY 4.0.