state house districtSouth Dakota 12th State House District
presidential margin
2004–2024 · Democratic minus Republican
2004R+18.9
2008R+3.2
2012R+12.4
2016R+19.0
2020R+13.8
2024R+17.2
full record · 1892 → 2024
presidential returns
2024 turnout 4.5% of 19,772 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
358
511
20
889
19,772
4.5%
2020
353
470
23
847
17,801†
4.8%
2016
259
392
49
700
16,709†
4.2%
2012
284
366
13
663
15,441†
4.3%
2008
322
344
12
678
15,338†
4.4%
2004
251
370
9
630
15,234†
4.1%
† 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 12South DakotaUnited States
German33.4%33.1%12.5%
Norwegian13.0%10.4%—
Irish10.1%9.9%9.4%
English7.2%7.7%9.5%
Dutch6.0%3.4%—
American4.8%4.4%5.3%
Swedish3.1%2.5%—
Danish1.2%0.8%—
Mexican2.5%2.6%11.3%
Salvadoran1.0%0.3%0.7%
Guatemalan0.9%0.5%0.5%
Puerto Rican0.2%0.4%1.8%
African American†2.1%1.1%9.9%
Ethiopian0.6%0.3%—
African0.5%0.2%0.5%
Liberian0.2%——
Asian Indian0.6%0.2%1.4%
Nepalese0.3%——
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 12
South Dakota
United States
Median age
33.3
38.2
39.1
Age 18–24
8.1%
9.2%
9.2%
Age 65 and older
14.1%
18.0%
17.2%
Household economy
Measure
SD HD 12
South Dakota
United States
Median household income
$70,510
$75,081
$84,427
Poverty rate
11.9%
12.0%
12.5%
Bachelor's degree or higher (25+)
38.0%
31.9%
35.6%
Languages at home
Measure
SD HD 12
South Dakota
United States
Speaks a non-English language at home
8.9%
7.1%
22.3%
Spanish
3.6%
2.6%
13.6%
Other languages
2.0%
1.9%
0.8%
Religious landscape
Measure
SD HD 12
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 12th State House District
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
1892
−41.9%
1896
+0.0%
1900
−18.8%
1904
−60.3%
1908
−36.5%
1912
+37.3%
1916
−13.7%
1920
−48.2%
1924
−44.0%
1928
−35.9%
1932
+12.5%
1936
+0.9%
1940
−19.3%
1944
−19.2%
1948
−10.8%
1952
−45.7%
1956
−25.9%
1960
−22.2%
1964
+9.9%
1968
−12.0%
1972
−1.5%
1976
−2.7%
1980
−13.9%
1984
−14.1%
1988
+3.2%
1992
+1.9%
1996
+2.2%
2000
−13.1%
2004
−18.9%
2008
−3.2%
2012
−12.4%
2016
−19.0%
2020
−13.8%
2024
−17.2%
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
40.3%Harris358
57.5%Trump511
2.2%
R+17.2
R+3.4
R+15.7
889
R
41.7%Biden353
55.5%Trump470
2.8%
R+13.8
D+5.2
R+18.3
847
R
37.0%Clinton259
56.0%Trump392
7.0%
R+19.0
R+6.6
R+21.1
700
R
42.8%Obama284
55.2%Romney366
2.0%
R+12.4
R+9.1
R+16.2
663
R
47.5%Obama322
50.7%McCain344
1.8%
R+3.2
D+15.6
R+10.5
678
R
39.8%Kerry251
58.7%Bush370
1.4%
R+18.9
R+5.8
R+16.4
630
R
42.8%Gore203
55.9%Bush265
1.3%
R+13.1
R+15.2
R+13.6
474
D
47.1%Clinton218
44.9%Dole208
8.0%
D+2.2
D+0.2
R+6.4
463
D
41.6%Clinton195
39.7%Bush186
18.8%
D+1.9
R+1.3
R+3.6
469
D
51.5%Dukakis211
48.3%Bush198
0.2%
D+3.2
D+17.2
D+10.9
410
R
42.7%Mondale167
56.8%Reagan222
0.5%
R+14.1
R+0.2
D+4.2
391
R
38.1%Carter145
52.0%Reagan198
10.0%
R+13.9
R+11.2
R+4.2
381
R
48.5%Carter164
51.2%Ford173
0.3%
R+2.7
R+1.2
R+4.7
338
R
49.1%McGovern163
50.6%Nixon168
0.3%
R+1.5
D+10.5
D+21.6
332
R
42.3%Humphrey120
54.2%Nixon154
3.5%
R+12.0
R+21.8
R+11.3
284
D
54.9%Johnson156
45.1%Goldwater128
0.0%
D+9.9
D+32.1
R+12.7
284
R
38.9%Kennedy112
61.1%Nixon176
0.0%
R+22.2
D+3.7
R+22.4
288
R
37.0%Stevenson100
63.0%Eisenhower170
0.0%
R+25.9
D+19.7
R+10.5
270
R
27.2%Stevenson69
72.8%Eisenhower185
0.0%
R+45.7
R+34.8
R+34.9
254
R
43.8%Truman89
54.7%Dewey111
1.5%
R+10.8
D+8.3
R+15.3
203
R
40.4%Roosevelt78
59.6%Dewey115
0.0%
R+19.2
D+0.1
R+26.7
193
R
40.3%Roosevelt94
59.7%Willkie139
0.0%
R+19.3
R+20.2
R+29.3
233
D
47.9%Roosevelt104
47.0%Landon102
5.1%
D+0.9
R+11.6
R+23.3
217
D
55.7%Roosevelt107
43.2%Hoover83
1.0%
D+12.5
D+48.4
R+5.3
192
R
31.8%Smith54
67.6%Hoover115
0.6%
R+35.9
D+8.1
R+18.4
170
R
9.0%Davis12
53.0%Coolidge71
38.1%
R+44.0
D+4.2
R+18.9
134
R
17.5%Cox20
65.8%Harding75
16.7%
R+48.2
R+34.5
R+22.1
114
R
41.1%Wilson30
54.8%Hughes40
4.1%
R+13.7
R+51.0
R+16.8
73
O
37.3%Wilson22
0.0%Taft0
62.7%
Roosevelt +25.4
D+73.8
D+17.7
59
R
28.6%Bryan18
65.1%Taft41
6.3%
R+36.5
D+23.8
R+27.0
63
R
15.9%Parker10
76.2%Roosevelt48
7.9%
R+60.3
R+41.6
R+40.7
63
R
39.1%Bryan25
57.8%McKinley37
3.1%
R+18.8
R+18.8
R+11.2
64
O
50.0%Bryan28
50.0%McKinley28
0.0%
Tied
D+41.9
D+6.1
56
R
11.6%Cleveland5
53.5%Harrison23
34.9%
R+41.9
—
R+43.5
43
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current representation
Current officeholders
RAmber ArlintState House · 12
RGreg JamisonState House · 12
State legislative officeholder from OpenStates nightly current-legislator data.
In 2024 it voted Republican by R+17.2, against R+3.2 in 2008, having changed party at least once across the five cycles. About 1,860 residents lived here as of the 2024 ACS 5-year.
Across the recorded series it reached a Democratic high of 37.3 points in 1912 and a Republican high of 60.3 points in 1904. Between 2020 and 2024 the district moved 3.4 points toward the Republican candidate; the 2024 margin was 17.2 points.
A population of 25,378, a 82% non-Hispanic-white share, and a median household income of $70,510 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 9 and State House District 7.
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 12th State House District. Akashic. https://akashic.app/sld-lower/46012/. Accessed May 20, 2026. License: CC BY 4.0.
How did South Dakota 12th State House District vote in 2024?
In 2024, South Dakota 12th State House District voted Republican by 17.2 points (R+17.2), carried by the Republican candidate. Out of 889 votes cast, 358 went Democratic and 511 went Republican.
When did South Dakota 12th State House District last vote Democratic?
The most recent presidential election in which South Dakota 12th State House District voted Democratic was 1996.
How many people live in South Dakota 12th State House District?
South Dakota 12th State House District has a population of 25,378 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in South Dakota 12th State House District?
Median household income in South Dakota 12th State House District is $70,510 — below the national median of $80,734. The South Dakota state median is $75,081.
What is the political history of South Dakota 12th State House District?
Akashic tracks 38 presidential elections in South Dakota 12th State House District from 1876 to 2024. Of those, 6 went Democratic and 26 went Republican.
