Question 1

How did Union, South Dakota vote in the 2024 presidential election?

Accepted Answer

Union, South Dakota voted Republican in 2024 with a margin of R+40.7. Kamala D Harris received 2,548 votes and Donald Trump received 6,160 out of 8,876 total votes cast, a 4.3-point shift toward Republicans from 2020.

Question 2

What is Union, South Dakota's political history?

Accepted Answer

Union, South Dakota has 34 presidential elections on record, spanning 1892 to 2024. It has voted Republican in every presidential election since 2000. The largest single-election swing was 54.7 points in 1912.

Question 3

What are the demographics of Union, South Dakota?

Accepted Answer

Union, South Dakota has a population of 17,081 according to the 2020 Census. The racial composition is 88.4% non-Hispanic white, 4.8% Hispanic. About 37% of residents hold a bachelor's degree or higher. Median household income is $89,636.

Question 4

Which places are most similar to Union, South Dakota?

Accepted Answer

Based on demographic and electoral similarity analysis, the three most similar countys to Union, South Dakota are Flathead, Marion, Yellowstone. Similarity is computed using a vector embedding of demographic, economic, and electoral characteristics.

Group	%
▶White (Non-Hispanic)(13)	88.4%
▶Hispanic / Latino(4)	4.8%
▶Black / African American(1)	0.9%
▶Asian(4)	1.1%
▶Middle Eastern / North African(2)	0.2%
▶Native American / Alaska Native(2)	1.0%
▶Native Hawaiian / Pacific Islander(1)	0.1%
Multiracial / Other	3.6%

Tradition	% Pop	% Adherents
Mainline Protestant	17.5%	52.2%
Catholic	11.2%	33.6%
Evangelical Protestant	4.8%	14.3%
Non-religious	66.5%	—

Year	Result
2024	Trump+40.7
2020	Trump+36.4
2016	Trump+38.8
2012	Romney+25.2
2008	McCain+13.8
2004	Bush+14.0
2000	Bush+15.7
1996	Clinton+2.8
1992	Clinton+8.4

Year	Dem %	Rep %	Margin	Swing
2024	28.7%	69.4%	R+40.7	R+4.3
2020	30.8%	67.1%	R+36.4	D+2.4
2016	28.2%	67.0%	R+38.8	R+13.6
2012	36.6%	61.8%	R+25.2	R+11.4
2008	42.1%	56.0%	R+13.8	D+0.2
2004	42.6%	56.6%	R+14.0	D+1.7
2000	40.9%	56.6%	R+15.7	R+18.5
1996	45.7%	42.9%	D+2.8	R+5.6
1992	43.4%	35.0%	D+8.4	R+7.1
1988	57.4%	41.9%	D+15.5	D+20.0
1984	47.5%	52.0%	R+4.5	D+14.5
1980	36.2%	55.2%	R+19.0	R+24.0
1976	52.3%	47.3%	D+5.0	R+0.8
1972	52.7%	46.9%	D+5.8	D+10.3
1968	45.2%	49.7%	R+4.5	R+28.6
1964	62.1%	37.9%	D+24.2	D+31.3
1960	46.4%	53.6%	R+7.1	R+1.2
1956	47.1%	52.9%	R+5.9	D+28.8
1952	32.7%	67.3%	R+34.7	R+35.4
1948	50.1%	49.4%	D+0.7	—

Union County, South Dakota

County in State Context

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