South Dakota 12th State Senate District (SD) — Elections 1892–2024

2024

How it voted

Share of the 2024 vote

Donald Trump ✓Republican	57.5%	511
Kamala HarrisDemocratic	40.3%	358
Robert F. Kennedy Jr.Other	2.2%	20

D+60

R+60

District boundary, filled by its own 2024 D-vs-R margin — precinct detail where available, over the 2 counties it's drawn from (shown faint).

The precinct map shows the 2024 presidential vote; the timeline scrubs the district’s overall result across 1892–2024, on its current boundaries.

County-level results (2 counties) — table

2024 presidential result by county for South Dakota 12th State Senate District — winner and D-vs-R margin.
County	Winner	Margin
Lincoln County, SD	Republican	R+26.5
Minnehaha County, SD	Republican	R+12.7

38 presidential elections

Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). † 2012 sub-county results are estimated: the source's block-level detail for this cycle 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	Total
2024	R	40.3%Harris358	57.5%Trump511	2.2%Kennedy20	−17.2%	889
2020	R	41.7%Biden353	55.5%Trump470	2.8%Jorgensen24	−13.8%	847
2016	R	37.0%Clinton259	56.0%Trump392	7.0%Johnson49	−19.0%	700
2012^†	R	42.8%Obama284	55.2%Romney366	2.0%Johnson13	−12.4%	663
2008	R	47.5%Obama322	50.7%McCain344	1.8%Nader12	−3.2%	678
2004	R	39.8%Kerry251	58.7%Bush370	1.4%Nader9	−18.9%	630
2000	R	42.8%Gore203	55.9%Bush265	1.3%Buchanan6	−13.1%	474
1996	D	47.1%Clinton218	44.9%Dole208	8.0%Browne37	+2.2%	463
1992	D	41.6%Clinton195	39.7%Bush186	18.8%Perot88	+1.9%	469
1988	D	51.5%Dukakis211	48.3%Bush198	0.2%Paul1	+3.2%	410
1984	R	42.7%Mondale167	56.8%Reagan222	0.5%Serrette2	−14.1%	391
1980	R	38.1%Carter145	52.0%Reagan198	10.0%Anderson38	−13.9%	381
1976	R	48.5%Carter164	51.2%Ford173	0.3%Macbride1	−2.7%	338
1972	R	49.1%McGovern163	50.6%Nixon168	0.3%Schmitz1	−1.5%	332
1968	R	42.3%Humphrey120	54.2%Nixon154	3.5%Wallace10	−12.0%	284
1964	D	54.9%Johnson156	45.1%Goldwater128	0.0%	+9.9%	284
1960	R	38.9%Kennedy112	61.1%Nixon176	0.0%	−22.2%	288
1956	R	37.0%Stevenson100	63.0%Eisenhower170	0.0%	−25.9%	270
1952	R	27.2%Stevenson69	72.8%Eisenhower185	0.0%	−45.7%	254
1948	R	43.8%Truman89	54.7%Dewey111	1.5%Thurmond3	−10.8%	203
1944	R	40.4%Roosevelt78	59.6%Dewey115	0.0%	−19.2%	193
1940	R	40.3%Roosevelt94	59.7%Willkie139	0.0%	−19.3%	233
1936	D	47.9%Roosevelt104	47.0%Landon102	5.1%Lemke11	+0.9%	217
1932	D	55.7%Roosevelt107	43.2%Hoover83	1.0%Thomas2	+12.5%	192
1928	R	31.8%Smith54	67.6%Hoover115	0.6%Thomas1	−35.9%	170
1924	R	9.0%Davis12	53.0%Coolidge71	38.1%La Follette51	−44.0%	134
1920	R	17.5%Cox20	65.8%Harding75	16.7%Debs19	−48.2%	114
1916	R	41.1%Wilson30	54.8%Hughes40	4.1%Benson3	−13.7%	73
1912	O	37.3%Wilson22	0.0%Taft0	62.7%Roosevelt37	Roosevelt +25.4	59
1908	R	28.6%Bryan18	65.1%Taft41	6.3%Debs4	−36.5%	63
1904	R	15.9%Parker10	76.2%Roosevelt48	7.9%Debs5	−60.3%	63
1900	R	39.1%Bryan25	57.8%McKinley37	3.1%Woolley2	−18.8%	64
1896	O	50.0%Bryan28	50.0%McKinley28	0.0%	+0.0%	56
1892	R	11.6%Cleveland5	53.5%Harrison23	34.9%Weaver15	−41.9%	43
1888	—	—	—	—	No data	—
1884	—	—	—	—	No data	—
1880	—	—	—	—	No data	—
1876	—	—	—	—	No data	—

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

current representation

Current officeholders

RArch BealState Senate · 12

State legislative officeholder from OpenStates nightly current-legislator data.

Source · OpenStates current legislator CSV.

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 83% 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 Senate District 13 and State Senate District 14.

Political twins — state-senate districts

The state-senate districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.

State Senate District 13

South Dakota

96.1twin score

elasticitypopulation scaleNorwegian ancestry

State Senate District 14

South Dakota

94.0twin score

elasticitypopulation scaleNorwegian ancestry≠ % unaffiliated

State Senate District 25

South Dakota

93.9twin score

elasticitypopulation scaleNorwegian ancestry≠ % unaffiliated

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 Senate District. Akashic. https://akashic.app/sld-upper/46012/. Accessed May 20, 2026. License: CC BY 4.0.

License: CC BY 4.0

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Frequently asked questions

How did South Dakota 12th State Senate District vote in 2024?

In 2024, South Dakota 12th State Senate 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 Senate District last vote Democratic?

The most recent presidential election in which South Dakota 12th State Senate District voted Democratic was 1996.

How many people live in South Dakota 12th State Senate District?

South Dakota 12th State Senate 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 Senate District?

Median household income in South Dakota 12th State Senate 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 Senate District?

Akashic tracks 38 presidential elections in South Dakota 12th State Senate District from 1876 to 2024. Of those, 6 went Democratic and 26 went Republican.