state house districtSouth Dakota 31st State House District
presidential margin
2004–2024 · Democratic minus Republican
2004R+31.3
2008R+15.4
2012R+26.9
2016R+34.2
2020R+30.5
2024R+31.3
full record · 1892 → 2024
presidential returns
2024 turnout 68.1% of 22,624 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
5,073
9,902
431
15,406
22,624
68.1%
2020
4,536
8,751
538
13,826
20,774†
66.6%
2016
3,355
7,410
1,075
11,840
19,855†
59.6%
2012
3,972
7,024
361
11,357
19,129†
59.4%
2008
4,931
6,786
336
12,053
18,386†
65.6%
2004
3,856
7,488
273
11,617
17,642†
65.8%
† Citizen voting-age population estimated for prior cycles from the constituent-county ACS trend anchored to the current figure. Source: ACS 5-year, table B05003.
——
D+60R+60
18922024
Boundary by 2024 margin · Precinct returns · VEST · 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
GroupSD HD 31South DakotaUnited States
German32.6%33.1%12.5%
Irish13.2%9.9%9.4%
English12.2%7.7%9.5%
Norwegian8.8%10.4%—
American5.7%4.4%5.3%
Swedish4.1%2.5%—
Dutch2.2%3.4%—
Russian2.2%——
Mexican2.6%2.6%11.3%
Puerto Rican0.3%0.4%1.8%
Cuban0.2%—0.7%
Oglala Sioux0.5%2.0%—
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
SD HD 31
South Dakota
United States
Median age
44.8
38.2
39.1
Age 18–24
10.9%
9.2%
9.2%
Age 65 and older
25.1%
18.0%
17.2%
Household economy
Measure
SD HD 31
South Dakota
United States
Median household income
$73,384
$75,081
$84,427
Poverty rate
11.6%
12.0%
12.5%
Bachelor's degree or higher (25+)
32.9%
31.9%
35.6%
Languages at home
Measure
SD HD 31
South Dakota
United States
Speaks a non-English language at home
4.7%
7.1%
22.3%
Spanish
2.0%
2.6%
13.6%
Religious landscape
Measure
SD HD 31
South Dakota
United States
Catholic
—
14.8%
18.6%
Evangelical Protestant
—
20.1%
16.5%
Unclaimed / not counted
—
44.9%
51.5%
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.
South Dakota 31st State House District
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
1892
−38.1%
1896
+13.5%
1900
−13.3%
1904
−44.7%
1908
−21.8%
1912
+54.0%
1916
+1.9%
1920
−40.9%
1924
−56.9%
1928
−39.6%
1932
−8.8%
1936
−13.2%
1940
−20.1%
1944
−30.8%
1948
−25.9%
1952
−53.1%
1956
−42.6%
1960
−32.1%
1964
−3.8%
1968
−25.3%
1972
−30.8%
1976
−14.8%
1980
−36.3%
1984
−39.5%
1988
−19.9%
1992
−6.3%
1996
−9.1%
2000
−37.5%
2004
−31.3%
2008
−15.4%
2012
−26.9%
2016
−34.2%
2020
−30.5%
2024
−31.3%
DemocraticRepublican
38 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. † 2004, 2012 sub-county results are estimated: the source's block-level detail for these cycles was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
R
32.9%Harris5,073
64.3%Trump9,902
2.8%
R+31.3
R+0.9
R+29.9
15,406
R
32.8%Biden4,536
63.3%Trump8,751
3.9%
R+30.5
D+3.8
R+34.9
13,826
R
28.3%Clinton3,355
62.6%Trump7,410
9.1%
R+34.2
R+7.4
R+36.3
11,840
R
35.0%Obama3,972
61.8%Romney7,024
3.2%
R+26.9
R+11.5
R+30.7
11,357
R
40.9%Obama4,931
56.3%McCain6,786
2.8%
R+15.4
D+15.9
R+22.7
12,053
R
33.2%Kerry3,856
64.5%Bush7,488
2.4%
R+31.3
D+6.3
R+28.8
11,617
R
29.7%Gore2,797
67.3%Bush6,326
3.0%
R+37.5
R+28.4
R+38.0
9,404
R
37.8%Clinton3,567
46.9%Dole4,429
15.3%
R+9.1
R+2.8
R+17.7
9,440
R
32.7%Clinton3,156
39.0%Bush3,769
28.3%
R+6.3
D+13.5
R+11.9
9,657
R
39.5%Dukakis3,704
59.4%Bush5,569
1.1%
R+19.9
D+19.6
R+12.2
9,377
R
29.9%Mondale2,565
69.4%Reagan5,948
0.6%
R+39.5
R+3.2
R+21.3
8,567
R
26.9%Carter2,259
63.1%Reagan5,305
10.0%
R+36.3
R+21.4
R+26.5
8,402
R
41.6%Carter3,101
56.5%Ford4,205
1.9%
R+14.8
D+15.9
R+16.9
7,448
R
34.5%McGovern2,533
65.2%Nixon4,794
0.3%
R+30.8
R+5.4
R+7.6
7,351
R
34.9%Humphrey2,425
60.2%Nixon4,184
4.9%
R+25.3
R+21.5
R+24.6
6,947
R
48.1%Johnson3,467
51.9%Goldwater3,742
0.0%
R+3.8
D+28.3
R+26.4
7,210
R
33.9%Kennedy2,612
66.1%Nixon5,082
0.0%
R+32.1
D+10.5
R+32.3
7,694
R
28.7%Stevenson1,871
71.3%Eisenhower4,653
0.0%
R+42.6
D+10.5
R+27.2
6,524
R
23.4%Stevenson1,701
76.6%Eisenhower5,558
0.0%
R+53.1
R+27.2
R+42.4
7,259
R
36.5%Truman2,209
62.5%Dewey3,777
1.0%
R+25.9
D+4.9
R+30.4
6,044
R
34.6%Roosevelt1,866
65.4%Dewey3,527
0.0%
R+30.8
R+10.7
R+38.3
5,393
R
39.9%Roosevelt3,514
60.1%Willkie5,287
0.0%
R+20.1
R+7.0
R+30.1
8,801
R
43.0%Roosevelt3,808
56.2%Landon4,973
0.8%
R+13.2
R+4.4
R+37.4
8,850
R
45.2%Roosevelt3,105
54.0%Hoover3,707
0.8%
R+8.8
D+30.8
R+26.6
6,867
R
30.0%Smith1,785
69.6%Hoover4,140
0.4%
R+39.6
D+17.3
R+22.1
5,946
R
14.2%Davis649
71.1%Coolidge3,254
14.8%
R+56.9
R+16.0
R+31.7
4,579
R
27.6%Cox1,201
68.5%Harding2,985
3.9%
R+40.9
R+42.8
R+14.7
4,358
D
49.4%Wilson2,157
47.5%Hughes2,074
3.0%
D+1.9
R+52.1
R+1.2
4,364
D
54.0%Wilson2,412
0.0%Taft0
46.0%
D+54.0
D+75.7
D+34.4
4,470
R
29.1%Bryan1,564
50.9%Taft2,735
20.0%
R+21.8
D+23.0
R+12.2
5,376
R
20.8%Parker1,347
65.5%Roosevelt4,246
13.7%
R+44.7
R+31.5
R+25.1
6,480
R
42.7%Bryan2,619
56.0%McKinley3,434
1.4%
R+13.3
R+26.8
R+5.7
6,137
D
56.4%Bryan2,904
42.9%McKinley2,210
0.7%
D+13.5
D+51.6
D+19.6
5,149
R
13.1%Cleveland546
51.2%Harrison2,140
35.7%
R+38.1
—
R+39.8
4,180
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current representation
Current officeholders
RMary FitzgeraldState House · 31
RScott OdenbachState House · 31
State legislative officeholder from OpenStates nightly current-legislator data.
The district recorded a Republican presidential margin of R+31.3 in 2024 and R+15.4 in 2008, switching sides at least once in between. About 27,200 residents lived here, with White alone at 90.4% in the 2024 ACS 5-year.
Across the recorded series it reached a Democratic high of 54.0 points in 1912 and a Republican high of 56.9 points in 1924. Between 2020 and 2024 the district moved 0.9 points toward the Republican candidate; the 2024 margin was 31.3 points.
A population of 25,768, a 89% non-Hispanic-white share, and a median household income of $73,384 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 33 and State House District 56.
Akashic
Political twins — state-house districts
The state-house districts 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.
South Dakota 31st State House District. Akashic. https://akashic.app/sld-lower/46031/. Accessed May 20, 2026. License: CC BY 4.0.
How did South Dakota 31st State House District vote in 2024?
In 2024, South Dakota 31st State House District voted Republican by 31.3 points (R+31.3), carried by the Republican candidate. Out of 15,406 votes cast, 5,073 went Democratic and 9,902 went Republican.
When did South Dakota 31st State House District last vote Democratic?
The most recent presidential election in which South Dakota 31st State House District voted Democratic was 1916.
How many people live in South Dakota 31st State House District?
South Dakota 31st State House District has a population of 25,768 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in South Dakota 31st State House District?
Median household income in South Dakota 31st State House District is $73,384 — below the national median of $80,734. The South Dakota state median is $75,081.
What is the political history of South Dakota 31st State House District?
Akashic tracks 38 presidential elections in South Dakota 31st State House District from 1876 to 2024. Of those, 3 went Democratic and 31 went Republican.
