Aiken County, South Carolina: Industrial Catholic Metro county. In 2024, voted R+26%. Democratic peak: D+100 in 1912.
Key facts
- 2024 presidential margin
- R+26MIT Election Lab
- Political typology
- Industrial Catholic MetroAkashic typology
- Population
- 174,1602024 5-year
- Median household income
- $70,6092024 5-year
- White (non-Hispanic)
- 65.0%2024 5-year
- Black
- 23.9%2024 5-year
- Hispanic / Latino
- 7.2%2024 5-year
- Peak Democratic margin
- D+100 in 1912MIT Election Lab
- Peak Republican margin
- R+56 in 1972MIT Election Lab
- Most similar
- Lexington County, SC · similarity 1.00
2024 results by precinct
2024 precinct map of Aiken CountyPrecinct-level 2024 presidential results for Aiken County, with each precinct boundary colored by Democratic-vs-Republican margin.
—
Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | No data |
| 1880 | No data |
| 1884 | No data |
| 1888 | No data |
| 1892 | +62.0% |
| 1896 | +85.5% |
| 1900 | +93.0% |
| 1904 | +95.9% |
| 1908 | +95.3% |
| 1912 | +99.6% |
| 1916 | +96.5% |
| 1920 | +92.5% |
| 1924 | +97.5% |
| 1928 | +68.6% |
| 1932 | +98.6% |
| 1936 | +98.9% |
| 1940 | +93.8% |
| 1944 | +89.0% |
| 1948 | +8.6% |
| 1952 | +0.7% |
| 1956 | −15.6% |
| 1960 | −23.2% |
| 1964 | −39.2% |
| 1968 | −21.7% |
| 1972 | −56.1% |
| 1976 | −3.5% |
| 1980 | −17.2% |
| 1984 | −44.2% |
| 1988 | −44.3% |
| 1992 | −23.4% |
| 1996 | −28.4% |
| 2000 | −33.1% |
| 2004 | −32.4% |
| 2008 | −24.0% |
| 2012 | −26.6% |
| 2016 | −27.5% |
| 2020 | −22.7% |
| 2024 | −25.9% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 31,298 | 53,592 | 86,091 | ||
| R | 32,275 | 51,589 | 85,185 | ||
| R | 25,455 | 46,025 | 74,851 | ||
| R | 25,322 | 44,042 | 70,363 | ||
| R | 26,101 | 42,849 | 69,770 | ||
| R | 19,799 | 39,077 | 59,492 | ||
| R | 16,409 | 33,203 | 50,782 | ||
| R | 14,314 | 26,539 | 43,074 | ||
| R | 14,802 | 25,731 | 46,778 | ||
| R | 10,598 | 27,665 | 38,507 | ||
| R | 9,892 | 25,872 | 36,133 | ||
| R | 13,014 | 18,570 | 32,369 | ||
| R | 14,927 | 16,011 | 31,173 | ||
| R | 5,745 | 21,117 | 27,407 | ||
| R | 6,319 | 12,264 | 27,398 | ||
| R | 7,622 | 17,467 | 25,089 | ||
| R | 6,674 | 10,715 | 17,389 | ||
| R | 4,280 | 6,195 | 12,296 | ||
| D | 4,346 | 4,282 | 8,628 | ||
| O | 572 | 115 | 5,299 | ||
| D | 2,403 | 60 | 2,633 | ||
| D | 2,772 | 89 | 2,861 | ||
| D | 3,298 | 0 | 3,333 | ||
| D | 3,346 | 0 | 3,393 | ||
| D | 1,308 | 242 | 1,553 | ||
| D | 1,488 | 16 | 1,509 | ||
| D | 1,649 | 64 | 1,713 | ||
| D | 1,750 | 26 | 1,787 | ||
| D | 1,452 | 0 | 1,458 | ||
| D | 1,990 | 48 | 2,038 | ||
| D | 1,672 | 35 | 1,707 | ||
| D | 1,470 | 53 | 1,523 | ||
| D | 1,819 | 137 | 1,967 | ||
| D | 1,802 | 396 | 2,268 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
American
15.2%
English
12.2%
German
10.6%
Irish
8.7%
Italian
3.6%
Scottish
2.4%
French
1.6%
African American
19.1%
Multiple ancestry combinations reported; no single grouping above 1%.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
2024 ACS
Age distribution by sex
Median age: 42.0 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$70,609
Aiken County ranks near the middle of US counties.
Aiken County$70,609
South Carolina$69,324
United States$80,734
Aiken County ranks near the middle of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
14.3%
Children face moderate poverty.
Children under 1819.8%
Working age (18–64)13.0%
Seniors (65+)11.7%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
94.0%
speak English only
Spanish4.5%
Other Indo-European0.7%
Asian & Pacific Islander0.6%
Other languages0.2%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 39.0% of residents not counted as adherents by any reporting body.
Aiken's economy revolves around the Savannah River Site, a federal nuclear facility that draws a highly educated technical workforce — a demographic that has nonetheless not softened the county's consistent Republican margins, which held above 25 points in 2024.
Its margins are typically close. The Democratic margin reached 100 points in 1912; the Republican margin reached fifty-six points in 1972. Between 2020 and 2024 the county moved three points toward the Republican candidate; the 2024 margin was twenty-six points.
Its demographics sit near national norms: a 65% non-Hispanic-white share, a median household income of $70,609, and a 14% poverty rate. The county's voting pattern over the last decade is most similar to that of Lexington County and Greenville County.
Most similar counties
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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Aiken County, South Carolina. Akashic. https://akashic.app/county/45003/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More in South Carolina
More industrial catholic metro counties
Frequently asked questions
How did Aiken County, South Carolina vote in 2024?
In 2024, Aiken County, South Carolina voted Republican by 25.9 points (R+26), carried by the Republican candidate. Out of 86,091 votes cast, 31,298 went Democratic and 53,592 went Republican.
What is Aiken County, South Carolina's political typology?
Akashic places Aiken County, South Carolina in the "Industrial Catholic Metro" typology — Mid-size industrial metros with Catholic ethnic roots — among the most competitive, swing-prone ground in the country. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the county has voted Democratic 15 times, Republican 18 times, and other 1 times.
When did Aiken County, South Carolina last vote Democratic?
The most recent presidential election in which Aiken County, South Carolina voted Democratic was 1952.
How many people live in Aiken County, South Carolina?
Aiken County, South Carolina has a population of 174,160 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Aiken County, South Carolina?
Median household income in Aiken County, South Carolina is $70,609 — below the national median of $80,734. The South Carolina state median is $69,324.
What is the political history of Aiken County, South Carolina?
Akashic tracks 38 presidential elections in Aiken County, South Carolina from 1876 to 2024. Of those, 15 went Democratic and 18 went Republican. The county's typology — "Industrial Catholic Metro" — captures where that record, its demographics, and its recent swing place it among American communities.