Seneca, SC, South Carolina: Realigner metro. In 2024, voted R+52%. Democratic peak: D+99 in 1932.
Key facts
- 2024 presidential margin
- R+52MIT Election Lab
- Political archetype
- RealignerAkashic typology
- Population
- 80,4692024 5-year
- Median household income
- $62,3882024 5-year
- White (non-Hispanic)
- 84.2%2024 5-year
- Black
- 5.3%2024 5-year
- Hispanic / Latino
- 6.2%2024 5-year
- Peak Democratic margin
- D+99 in 1932MIT Election Lab
- Peak Republican margin
- R+58 in 1972MIT Election Lab
Constituent county margins for Seneca, SC, SCOne cell per constituent county, colored by 2024 presidential margin from deep red (Republican) through neutral to deep blue (Democratic), ordered bluest first.
R+60D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 9,987 | 31,772 | 42,264 | ||
| R | 10,414 | 29,698 | 40,668 | ||
| R | 7,998 | 24,178 | 33,635 | ||
| R | 8,550 | 21,611 | 30,666 | ||
| R | 9,481 | 21,164 | 31,132 | ||
| R | 8,395 | 18,811 | 27,532 | ||
| R | 7,571 | 15,364 | 23,575 | ||
| R | 7,398 | 10,503 | 19,952 | ||
| R | 6,617 | 10,379 | 20,479 | ||
| R | 4,299 | 10,184 | 14,585 | ||
| R | 3,333 | 8,625 | 12,044 | ||
| D | 7,677 | 5,651 | 13,591 | ||
| D | 8,447 | 3,805 | 12,312 | ||
| R | 1,740 | 6,824 | 8,728 | ||
| O | 2,009 | 2,618 | 9,369 | ||
| D | 5,560 | 2,712 | 8,272 | ||
| D | 4,328 | 1,886 | 6,214 | ||
| D | 3,510 | 911 | 4,797 | ||
| D | 3,230 | 1,624 | 4,854 | ||
| O | 666 | 135 | 1,957 | ||
| D | 1,316 | 106 | 1,498 | ||
| D | 1,593 | 143 | 1,736 | ||
| D | 2,057 | 0 | 2,110 | ||
| D | 1,803 | 0 | 1,818 | ||
| D | 1,263 | 70 | 1,335 | ||
| D | 989 | 5 | 1,027 | ||
| D | 1,249 | 70 | 1,319 | ||
| D | 885 | 59 | 947 | ||
| D | 760 | 0 | 887 | ||
| D | 1,126 | 172 | 1,300 | ||
| D | 720 | 62 | 782 | ||
| D | 873 | 69 | 942 | ||
| D | 1,392 | 199 | 1,591 | ||
| D | 909 | 220 | 1,557 | ||
| — | — | — | — | ||
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Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
English
17.0%
Irish
13.9%
German
12.0%
American
9.1%
Scottish
3.6%
Italian
2.8%
Polish
1.9%
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.
Age distribution by sex
Median age: 47.3 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.
Median household income
2024 inflation-adjusted dollars
$62,388
Seneca, SC ranks near the middle of US counties.
Seneca, SC$62,388
South Carolina$69,324
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
17.6%
Children face higher poverty than working-age adults.
Children under 1826.2%
Working age (18–64)16.4%
Seniors (65+)9.0%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
94.9%
speak English only
Spanish3.9%
Other Indo-European0.7%
Asian & Pacific Islander0.5%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 45.1% of residents not counted as adherents by any reporting body.
Seneca sits at the western tip of South Carolina's Upstate, where textile-era demographics and proximity to Clemson University create an electorate that trends heavily Republican but shows measurable ticket-splitting in local races.
The unraveling was not abrupt. The Democratic margin in Seneca, SC peaked at ninety-nine points in 1932; it narrowed steadily over the late twentieth century. The 1984 election delivered the metro to the Republican party for the first time in many years, by a margin of forty-four points. By 2024, the margin had widened further.
The economic and demographic context is severe. The median household income of $62,388 is among the lowest at this geographic scale; 18% of residents live below the federal poverty line.
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Seneca, SC, South Carolina — The Long Memory. Akashic Intelligence — The Long Memory. https://tiers.akashic.app/cbsa/42860/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did Seneca, SC, South Carolina vote in 2024?
In 2024, Seneca, SC, South Carolina voted Republican by 51.5 points (R+52), carried by the Republican candidate. Out of 42,264 votes cast, 9,987 went Democratic and 31,772 went Republican.
What is Seneca, SC, South Carolina's political archetype?
Akashic classifies Seneca, SC, South Carolina as a "Realigner" metro based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the metro has voted Democratic 20 times, Republican 12 times, and other 2 times.
When did Seneca, SC, South Carolina last vote Democratic?
The most recent presidential election in which Seneca, SC, South Carolina voted Democratic was 1980.
How many people live in Seneca, SC, South Carolina?
Seneca, SC, South Carolina has a population of 80,469 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Seneca, SC, South Carolina?
Median household income in Seneca, SC, South Carolina is $62,388 — below the national median of $80,734. The South Carolina state median is $69,324.
What is the political history of Seneca, SC, South Carolina?
Akashic tracks 38 presidential elections in Seneca, SC, South Carolina from 1876 to 2024. Of those, 20 went Democratic and 12 went Republican. The metro's archetype — "Realigner" — captures the overall trajectory of that voting record.