Duncan, OK, Oklahoma: Realigner metro. In 2024, voted R+64%. Democratic peak: D+77 in 1932.
Key facts
- 2024 presidential margin
- R+64MIT Election Lab
- Political archetype
- RealignerAkashic typology
- Population
- 43,5512024 5-year
- Median household income
- $61,6202024 5-year
- White (non-Hispanic)
- 80.0%2024 5-year
- Black
- 1.5%2024 5-year
- Hispanic / Latino
- 8.7%2024 5-year
- Peak Democratic margin
- D+77 in 1932MIT Election Lab
- Peak Republican margin
- R+65 in 2020MIT Election Lab
Constituent county margins for Duncan, OK, OKOne 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 | 3,236 | 15,092 | 18,620 | ||
| R | 3,154 | 15,560 | 19,057 | ||
| R | 3,086 | 14,182 | 17,904 | ||
| R | 3,939 | 12,908 | 16,847 | ||
| R | 4,538 | 14,394 | 18,932 | ||
| R | 5,515 | 13,646 | 19,161 | ||
| R | 6,467 | 10,860 | 17,488 | ||
| R | 7,248 | 8,144 | 17,776 | ||
| D | 7,644 | 7,085 | 20,471 | ||
| R | 7,833 | 9,844 | 17,795 | ||
| R | 6,359 | 12,871 | 19,333 | ||
| R | 7,191 | 10,199 | 17,852 | ||
| D | 9,795 | 7,099 | 17,020 | ||
| R | 3,623 | 10,309 | 14,396 | ||
| R | 5,249 | 5,508 | 14,323 | ||
| D | 9,272 | 5,323 | 14,595 | ||
| R | 6,899 | 8,084 | 14,983 | ||
| D | 7,524 | 6,324 | 13,848 | ||
| D | 8,029 | 6,461 | 14,490 | ||
| D | 6,702 | 1,909 | 8,611 | ||
| D | 6,189 | 2,766 | 8,974 | ||
| D | 6,149 | 2,989 | 9,172 | ||
| D | 6,390 | 1,636 | 8,071 | ||
| D | 7,706 | 1,012 | 8,718 | ||
| R | 2,982 | 5,192 | 8,279 | ||
| D | 4,745 | 2,377 | 7,534 | ||
| D | 2,816 | 2,035 | 5,197 | ||
| D | 2,343 | 607 | 4,048 | ||
| D | 1,735 | 598 | 3,248 | ||
| D | 1,761 | 725 | 3,124 | ||
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Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
English
13.3%
Irish
11.8%
German
9.8%
American
9.8%
Scottish
2.6%
Italian
1.5%
French
1.3%
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: 41.0 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.
Median household income
2024 inflation-adjusted dollars
$61,620
Duncan, OK ranks near the middle of US counties.
Duncan, OK$61,620
Oklahoma$65,039
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
18.0%
Children face higher poverty than working-age adults.
Children under 1825.9%
Working age (18–64)16.3%
Seniors (65+)10.9%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
95.1%
speak English only
Spanish3.9%
Other Indo-European0.5%
Asian & Pacific Islander0.4%
Other languages0.1%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 37.1% of residents not counted as adherents by any reporting body.
Duncan anchors a small southwest Oklahoma metro where the petroleum industry has long defined both the economy and a reliably conservative voting pattern, with Republicans routinely carrying Stephens County by margins exceeding 40 points.
The unraveling was not abrupt. The Democratic margin in Duncan, OK peaked at seventy-seven points in 1932; it narrowed steadily over the late twentieth century. The 1996 election delivered the metro to the Republican party for the first time in many years, by a margin of five points. By 2024, the margin had widened further.
The economic and demographic context is severe. The median household income of $61,620 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.
Duncan, OK, Oklahoma — The Long Memory. Akashic Intelligence — The Long Memory. https://tiers.akashic.app/cbsa/20340/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did Duncan, OK, Oklahoma vote in 2024?
In 2024, Duncan, OK, Oklahoma voted Republican by 63.7 points (R+64), carried by the Republican candidate. Out of 18,620 votes cast, 3,236 went Democratic and 15,092 went Republican.
What is Duncan, OK, Oklahoma's political archetype?
Akashic classifies Duncan, OK, Oklahoma as a "Realigner" metro based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the metro has voted Democratic 15 times, Republican 15 times, and other 0 times.
When did Duncan, OK, Oklahoma last vote Democratic?
The most recent presidential election in which Duncan, OK, Oklahoma voted Democratic was 1992.
How many people live in Duncan, OK, Oklahoma?
Duncan, OK, Oklahoma has a population of 43,551 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Duncan, OK, Oklahoma?
Median household income in Duncan, OK, Oklahoma is $61,620 — below the national median of $80,734. The Oklahoma state median is $65,039.
What is the political history of Duncan, OK, Oklahoma?
Akashic tracks 38 presidential elections in Duncan, OK, Oklahoma from 1876 to 2024. Of those, 15 went Democratic and 15 went Republican. The metro's archetype — "Realigner" — captures the overall trajectory of that voting record.