Union County, South Dakota

7 cities & places have their primary county here.

Population: 16,916
Median household income: $84,137
Median home value: $269,500

Union County, South Dakota counts 16,916 residents. 7 cities and places have their primary county here. Its median household income of $84,137 runs above the South Dakota figure of $72,421.

Between 2019 and 2023, Union County's population grew 10.1% from 15,368 to 16,916, while its median household income rose 19.6% from $70,378 to $84,137.

70.9% of homes are single-family detached houses. The typical home was built around 1992.

Demographics

ACS 2019–2023

Population: 16,916
Median age: 40.4 yrs
Median household income: $84,137
Median home value: $269,500
Median gross rent: $1,055
Housing units: 7,438
Homeownership rate: 71.3%
Bachelor's degree or higher: 36.5%
Unemployment rate: 3.5%

Trends

ACS 5-year · 2019–2023

Population

15,36816,916

Median household income

$70,378$84,137

Median home value

$179,300$269,500

Median gross rent

$854$1,055

Year	Population	Median household income	Median home value	Median gross rent
2019	15,368	$70,378	$179,300	$854
2020	15,659	$74,006	$206,300	$854
2021	16,424	$80,238	$221,300	$943
2022	16,700	$82,036	$254,900	$1,008
2023	16,916	$84,137	$269,500	$1,055

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 55.3%

5 to 1718.9%

18 to 246.9%

25 to 3412.2%

35 to 4413.2%

45 to 5411.7%

55 to 6413.0%

65 to 7411.8%

75 and over7.1%

	Count	Share
Under 5	901	5.3%
5 to 17	3,191	18.9%
18 to 24	1,161	6.9%
25 to 34	2,062	12.2%
35 to 44	2,231	13.2%
45 to 54	1,977	11.7%
55 to 64	2,197	13.0%
65 to 74	1,993	11.8%
75 and over	1,203	7.1%

Race & ethnicity

	Count	Share
White (non-Hispanic)	15,057	89.0%
Black or African American	142	0.8%
American Indian & Alaska Native	148	0.9%
Asian	238	1.4%
Native Hawaiian & Pacific Islander	12	0.1%
Some other race	37	0.2%
Two or more races	534	3.2%
Hispanic or Latino (any race)	748	4.4%

Educational attainment (age 25+)

No high school diploma5.1%

High school graduate28.0%

Some college or associate's30.4%

Bachelor's degree22.8%

Graduate or professional degree13.7%

	Count	Share
No high school diploma	593	5.1%
High school graduate	3,270	28.0%
Some college or associate's	3,542	30.4%
Bachelor's degree	2,659	22.8%
Graduate or professional degree	1,599	13.7%

Commute to work

Mean travel time to work: 19 min

Drove alone82.5%

Carpooled7.1%

Public transit0.0%

Walked1.4%

Bicycle0.3%

Worked from home7.5%

Other means1.2%

How workers get to work

	Count	Share
Drove alone	7,099	82.5%
Carpooled	612	7.1%
Public transit	0	0.0%
Walked	120	1.4%
Bicycle	28	0.3%
Worked from home	645	7.5%
Other means	106	1.2%

Travel time

	Count	Share
Under 15 min	3,347	42.0%
15 to 29 min	2,835	35.6%
30 to 44 min	1,045	13.1%
45 to 59 min	422	5.3%
60+ min	316	4.0%

Households

Average household size: 2.36
Poverty rate: 7.3% (1,218 of 16,707)

	Count	Share
Family households	4,802	67.4%
Nonfamily households	2,322	32.6%

Housing

Median year structure built: 1992

Occupancy

	Count	Share
Occupied	7,124	95.8%
Vacant	314	4.2%

Tenure (of occupied units)

	Count	Share
Owner-occupied	5,077	71.3%
Renter-occupied	2,047	28.7%

1-unit, detached70.9%

1-unit, attached4.4%

2 to 4 units4.4%

5 to 19 units7.4%

20 or more units8.8%

Mobile home & other4.3%

Units in structure

	Count	Share
1-unit, detached	5,272	70.9%
1-unit, attached	325	4.4%
2 to 4 units	326	4.4%
5 to 19 units	547	7.4%
20 or more units	651	8.8%
Mobile home & other	317	4.3%

Geography

County GEOID: 46127
State: South Dakota
Land area: 461 sq mi
Water area: 6.37 sq mi
Center point: 42.8311, -96.6508