- Lead
- 11,856
- Total
- 18,620
- vs nation
- R+62.2
Duncan, OK
President margin by year
Place winner margin
President results by year
Vote totals, margins, and source status
- Lead
- 12,406
- Total
- 19,057
- vs nation
- R+69.6
- Lead
- 11,096
- Total
- 17,904
- vs nation
- R+64.1
- Lead
- 8,969
- Total
- 16,847
- vs nation
- R+57.1
- Lead
- 9,856
- Total
- 18,932
- vs nation
- R+59.3
- Lead
- 8,131
- Total
- 19,161
- vs nation
- R+40.0
- Lead
- 4,393
- Total
- 17,488
- vs nation
- R+25.6
- Lead
- 896
- Total
- 17,776
- vs nation
- R+13.6
Key facts
- 2024 presidential margin
- R+63.7MIT Election Lab
- Population
- 43,5512024 5-year
- Population density
- 50 / sq mi2024 5-year · TIGER/Line
- Land area
- 870 sq miTIGER/Line
- Median household income
- $61,6202024 5-year
- White (non-Hispanic)
- 77.4%2024 5-year
- Black
- 1.3%2024 5-year
- Hispanic / Latino
- 8.7%2024 5-year
- Peak Democratic margin
- D+76.8 in 1932MIT Election Lab
- Peak Republican margin
- R+65.1 in 2020MIT Election Lab
- Most similar
- Cleveland, TN · twin score 96.7
presidential history
Party record book
Duncan, OK · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1908–2024 · 30 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Franklin D. Roosevelt1932
88.4%
7,706 votes · D+76.8
Runner-up · Franklin D. Roosevelt, 1936 · 79.2%
Republican
Donald Trump2020
81.6%
15,560 votes · R+65.1
Runner-up · Donald Trump, 2024 · 81.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Jimmy Carter1976
9,795votes
57.5% of the vote · D+15.8
Runner-up · Lyndon B. Johnson, 1964 · 9,272 votes
Republican
Donald Trump2020
15,560votes
81.6% of the vote · R+65.1
Runner-up · Donald Trump, 2024 · 15,092 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
Franklin D. Roosevelt1932
+59.0pts D vs U.S.
Place D+76.8 · U.S. D+17.8
Runner-up · John W. Davis, 1924 · +56.6 pts
Republican
Donald Trump2020
+69.6pts R vs U.S.
Place R+65.1 · U.S. D+4.5
Runner-up · Donald Trump, 2016 · +64.1 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.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | R | 17.3%3,230 | 82.7%15,394 | 18,624 |
| 2020 | R | 15.5%2,868 | 84.5%15,595 | 18,463 |
Registered voters
By party of registration, over time
Registration leans Republican; the presidential vote runs 15 points more Republican than the rolls.
27,924 registered voters · 2026
Who moves in and out
Net domestic migration over time
+143 net domestic migration · 2025
Net +150 over 2011–2025 · gain loss
| Year | Net domestic migration |
|---|---|
| 2011 | +19 |
| 2012 | −232 |
| 2013 | +138 |
| 2014 | −465 |
| 2015 | +49 |
| 2016 | −608 |
| 2017 | −646 |
| 2018 | −122 |
| 2019 | +25 |
| 2021 | +561 |
| 2022 | +682 |
| 2023 | +504 |
| 2024 | +102 |
| 2025 | +143 |
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.
Across the recorded series it reached a Democratic high of 76.8 points in 1932 and a Republican high of 65.1 points in 2020. Between 2020 and 2024 the metro moved 1.4 points toward the Democratic candidate; the 2024 margin was 63.7 points.
A population of 43,551, a 77% non-Hispanic-white share, and a median household income of $61,620 describe the metro. The metro's voting pattern over the last decade is most similar to that of Cleveland, TN and Shawnee, OK.
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 →
Duncan, OK, Oklahoma. Akashic. https://akashic.app/cbsa/20340/. Accessed May 20, 2026. License: CC BY 4.0.