† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
1 counties by 2024 margin · County returns · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupDuncan, OKOklahomaUnited States
English13.3%11.4%9.5%
Irish11.8%9.9%9.4%
German9.8%12.0%12.5%
American9.8%6.1%5.3%
Scottish2.6%2.0%1.3%
Italian1.5%1.7%4.8%
French1.3%1.4%1.6%
Scotch-Irish0.9%0.7%—
Mexican6.9%9.7%11.3%
Puerto Rican0.4%0.5%1.8%
Spaniard0.4%0.2%—
Honduran0.2%0.2%0.3%
Chickasaw0.2%0.4%—
African American†1.0%6.0%9.9%
African0.2%0.3%0.5%
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
Duncan, OK
Oklahoma
United States
Median age
41
37.1
39.1
Age 18–24
7.6%
9.8%
9.2%
Age 65 and older
20.7%
16.4%
17.2%
Household economy
Measure
Duncan, OK
Oklahoma
United States
Median household income
$61,620
$65,039
$84,427
Poverty rate
18.0%
15.4%
12.5%
Bachelor's degree or higher (25+)
20.6%
28.5%
35.6%
Languages at home
Measure
Duncan, OK
Oklahoma
United States
Speaks a non-English language at home
4.9%
11.5%
22.3%
Spanish
3.9%
8.1%
13.6%
Religious landscape
Measure
Duncan, OK
Oklahoma
United States
Catholic
2.1%
6.9%
18.6%
Evangelical Protestant
50.6%
41.7%
16.5%
Unclaimed / not counted
37.2%
39.1%
51.5%
Mainline Protestant
8.1%
7.7%
5.2%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Duncan, OK
presidential history
Presidential margin, 1908–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
1908
+33.2%
1912
+35.0%
1916
+42.9%
1920
+15.0%
1924
+31.4%
1928
−26.7%
1932
+76.8%
1936
+58.9%
1940
+34.5%
1944
+38.1%
1948
+55.7%
1952
+10.8%
1956
+8.7%
1960
−7.9%
1964
+27.1%
1968
−1.8%
1972
−46.4%
1976
+15.8%
1980
−16.8%
1984
−33.7%
1988
−11.3%
1992
+2.7%
1996
−5.0%
2000
−25.1%
2004
−42.4%
2008
−52.1%
2012
−53.2%
2016
−62.0%
2020
−65.1%
2024
−63.7%
DemocraticRepublican
34 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
R
17.4%Harris3,236
81.1%Trump15,092
1.6%
R+63.7
D+1.4
R+62.2
18,620
R
16.6%Biden3,154
81.6%Trump15,560
1.8%
R+65.1
R+3.1
R+69.6
19,057
R
17.2%Clinton3,086
79.2%Trump14,182
3.6%
R+62.0
R+8.7
R+64.1
17,904
R
23.4%Obama3,939
76.6%Romney12,908
0.0%
R+53.2
R+1.2
R+57.1
16,847
R
24.0%Obama4,538
76.0%McCain14,394
0.0%
R+52.1
R+9.6
R+59.3
18,932
R
28.8%Kerry5,515
71.2%Bush13,646
0.0%
R+42.4
R+17.3
R+40.0
19,161
R
37.0%Gore6,467
62.1%Bush10,860
0.9%
R+25.1
R+20.1
R+25.6
17,488
R
40.8%Clinton7,248
45.8%Dole8,144
13.4%
R+5.0
R+7.8
R+13.6
17,776
D
37.3%Clinton7,644
34.6%Bush7,085
28.0%
D+2.7
D+14.0
R+2.8
20,471
R
44.0%Dukakis7,833
55.3%Bush9,844
0.7%
R+11.3
D+22.4
R+3.6
17,795
R
32.9%Mondale6,359
66.6%Reagan12,871
0.5%
R+33.7
R+16.8
R+15.5
19,333
R
40.3%Carter7,191
57.1%Reagan10,199
2.6%
R+16.8
R+32.7
R+7.1
17,852
D
57.5%Carter9,795
41.7%Ford7,099
0.7%
D+15.8
D+62.3
D+13.8
17,020
R
25.2%McGovern3,623
71.6%Nixon10,309
3.2%
R+46.4
R+44.6
R+23.3
14,396
R
36.6%Humphrey5,249
38.5%Nixon5,508
24.9%
R+1.8
R+28.9
R+1.1
14,323
D
63.5%Johnson9,272
36.5%Goldwater5,323
0.0%
D+27.1
D+35.0
D+4.5
14,595
R
46.0%Kennedy6,899
54.0%Nixon8,084
0.0%
R+7.9
R+16.6
R+8.1
14,983
D
54.3%Stevenson7,524
45.7%Eisenhower6,324
0.0%
D+8.7
R+2.2
D+24.1
13,848
D
55.4%Stevenson8,029
44.6%Eisenhower6,461
0.0%
D+10.8
R+44.8
D+21.6
14,490
D
77.8%Truman6,702
22.2%Dewey1,909
0.0%
D+55.7
D+17.5
D+51.2
8,611
D
69.0%Roosevelt6,189
30.8%Dewey2,766
0.2%
D+38.1
D+3.7
D+30.7
8,974
D
67.0%Roosevelt6,149
32.6%Willkie2,989
0.4%
D+34.5
R+24.4
D+24.5
9,172
D
79.2%Roosevelt6,390
20.3%Landon1,636
0.6%
D+58.9
R+17.9
D+34.6
8,071
D
88.4%Roosevelt7,706
11.6%Hoover1,012
0.0%
D+76.8
D+103.5
D+59.0
8,718
R
36.0%Smith2,982
62.7%Hoover5,192
1.3%
R+26.7
R+58.1
R+9.2
8,279
D
63.0%Davis4,745
31.6%Coolidge2,377
5.5%
D+31.4
D+16.4
D+56.6
7,534
D
54.2%Cox2,816
39.2%Harding2,035
6.7%
D+15.0
R+27.9
D+41.2
5,197
D
57.9%Wilson2,343
15.0%Hughes607
27.1%
D+42.9
D+7.9
D+39.7
4,048
D
53.4%Wilson1,735
18.4%Taft598
28.2%
D+35.0
D+1.8
D+15.5
3,248
D
56.4%Bryan1,761
23.2%Taft725
20.4%
D+33.2
—
D+42.7
3,124
—
—
—
—
No data
—
—
—
—
—
—
—
No data
—
—
—
—
—
—
—
No data
—
—
—
—
—
—
—
No data
—
—
—
Congressional elections · 2 Senate races
U.S. Senate
Source · MIT Election Lab (MEDSL), Senate. CC-BY 4.0.
Year
Won
Democratic
Republican
Total
2022
R
17.2%2,260
78.5%10,292
13,107
2020
R
16.5%3,122
80.2%15,216
18,977
voter registration
Registered voters
By party of registration, over time
Party registration · 2026R+48.9
vs
Presidential vote · 2024R+63.7
Registration leans Republican; the presidential vote runs 15 points more Democratic.
Domestic migration in Duncan, OK in Duncan, OK: net domestic migration by year
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.
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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Duncan, OK, Oklahoma. Akashic. https://akashic.app/cbsa/20340/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Embed this page
A live widget for your site — no API key, attribution built in, CC BY 4.0. All widgets & sizes →
In 2024, Duncan, OK, Oklahoma voted Republican by 63.7 points (R+63.7), carried by the Republican candidate. Out of 18,620 votes cast, 3,236 went Democratic and 15,092 went Republican.
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 34 presidential elections in Duncan, OK, Oklahoma from 1892 to 2024. Of those, 15 went Democratic and 15 went Republican.
