Sumter, SC · which candidate this place backed in each party’s presidential nominating contest, cycle by cycle. A primary is a contest inside one party, so it has no Democratic–Republican margin and is not part of the general-election record above.
Akashic reports votes cast, not delegates awarded. The two can disagree: Clinton led the 2008 national primary popular vote by less than half a point and did not win the nomination.
Primary returns are published at county grain, and this place is a single county: Sumter County, South Carolina. The figures below are that county’s, which is the same territory — not a larger unit standing in for it.
Presidential nominating contests in Sumter, SC, by party and cycle.
○no contest record — Akashic holds no result for that party and cycle here. It is not a claim that no contest was held. Telling apart a contest that was cancelled, one that went uncontested, and one simply not yet ingested needs a nominating-contest calendar, which is a separate ingest from results and does not exist yet.
Republican presidential primaries are not yet ingested — the Republican series runs from 1856 and is in scope. The row is kept so its absence is visible: a Democratic-only panel would otherwise read as though no one else held a contest.
Akashic carries 10 states for 2012 and 3 states for 2024. Cycles in which an incumbent president seeks renomination are thin by nature — few states run a contested primary — so a sparse column is politics, not a hole in the record.
County returns carry a leader and a lead over the runner-up, and nothing more. The full candidate field with vote shares is published at state grain — follow a cycle above to the state contest for it.
voter registration
Registered voters
Total registered voters, over time
Registered voters
Voter registration in Sumter, SC
Year
Total registered
2016
69,213
2018
75,135
2020
79,775
2022
74,360
2024
73,763
domestic migration
Who moves in and out
Net domestic migration over time
+221 net domestic migration · 2025
20112025
Net −6,115 over 2011–2025 · gain loss
Domestic migration in Sumter, SC in Sumter, SC: net domestic migration by year
Year
Net domestic migration
2011
−835
2012
−315
2013
−667
2014
−724
2015
−1,022
2016
−515
2017
−935
2018
−318
2019
−40
2021
−635
2022
−786
2023
+302
2024
+154
2025
+221
Shaw Air Force Base anchors Sumter's economy and demographic profile, drawing a transient population that can dampen long-term partisan entrenchment despite the surrounding Lowcountry counties leaning reliably in one direction by double-digit margins.
Across the recorded series it reached a Democratic high of 97.3 points in 1936 and a Republican high of 40.2 points in 1952. Between 2020 and 2024 the metro moved 8.1 points toward the Republican candidate; the 2024 margin was 4.9 points.
A population of 104,725, a 44% non-Hispanic-white share, and a median household income of $56,693 describe the metro. The metro's voting pattern over the last decade is most similar to that of Henderson, NC and Rocky Mount, NC.
Akashic
Political twins — metros
The metros 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.
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 →
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Sumter, SC, South Carolina. Akashic. https://akashic.app/cbsa/44940/. Accessed May 20, 2026. License: CC BY 4.0.
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In 2024, Sumter, SC, South Carolina voted Democratic by 4.9 points (D+4.9), carried by the Democratic candidate. Out of 45,170 votes cast, 23,425 went Democratic and 21,215 went Republican.
When did Sumter, SC, South Carolina last vote Republican?
The most recent presidential election in which Sumter, SC, South Carolina voted Republican was 2000.
How many people live in Sumter, SC, South Carolina?
Sumter, SC, South Carolina has a population of 104,725 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Sumter, SC, South Carolina?
Median household income in Sumter, SC, South Carolina is $56,693 — below the national median of $80,734. The South Carolina state median is $69,324.
What is the political history of Sumter, SC, South Carolina?
Akashic tracks 34 presidential elections in Sumter, SC, South Carolina from 1892 to 2024. Of those, 22 went Democratic and 9 went Republican.
