United States › South Dakota › Union County COUNTY · 2010 ACS
Union County South Dakota · 14,399 residents · 461 sq mi
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The short version
Union County is home to 14,399 people in South Dakota. 2% of people here were born outside the United States. That is roughly 29% ahead of the South Dakota median. The poverty rate is 4.9%, under the national 13.8%. Owners hold 74% of the housing stock. Home values have risen by half since 2000, reaching $132,200.
At a glance
Wealthier
above the US median
US median: $52,703
Older
median age 40.2
US median: 37.2
Average education
29% hold a bachelor's degree
US average: 28%
Stable housing
home values roughly flat, inflation adjusted
US median home: $225,659
Section 01
Population & growth from 36.9 in 2000
US average: 37.2
Population, 1990 – 2024
9K 12K 14K 16K 18K 1990 2000 2010 2020 2024 Union County Age distribution, 2010
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Section 02
Income & economy $59,889
+6%inflation adjusted, since 2000
from $44,790 in 2000
US average: $52,703
from $24,355 in 2000
US average: $27,286
Households earning $100K+
from 33.3% in 2009
US average: 33.3%
from 5.5% in 2000
US average: 13.8%
Workforce by industry, 2010
Public administration 6.5%
Agriculture, forestry, fishing 5.5%
Professional, scientific, technical 4.8%
Transportation & warehousing 4.2%
Education & health services 1.4%
Arts, entertainment, food 1.2%
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$132,200
+23%inflation adjusted, since 2000
from $85,200 in 2000
US average: $225,659
$671
+5%inflation adjusted, since 2000
from $505 in 2000
US average: $853
from 74.4% in 2000
25.6% rent
from 6.0% in 2009
US average: 12.1%
from 2.43 people in 2009
US average: 2.60
from 15.4% in 2009
US average: 30.9%
from 24.0% in 2009
US average: 46.8%
from 2.2 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04
Race & ethnicity 2000
White, non-Hispanic 96%(12,081)
Hispanic / Latino 1.3%(158)
2010
White, non-Hispanic 94.5%(13,608)
Hispanic / Latino 2.1%(305)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 19 more ancestry groups with data from 26.3% in 2000
US average: 27.9%
High school or higher
from 87.2% in 2000
US average: 84.9%
from 8.8% in 2000
US average: 10.2%
Section 06
Commute & transportation from 12.5 min in 2000
US average: 25.2
from 84.3% in 2009
US average: 76.2%
from 8.2% in 2009
US average: 10.4%
from 0.0% in 2009
US average: 4.7%
from 4.4% in 2009
US average: 4.1%
from 1.6% in 2009
US average: 2.8%
from 0.4% in 2009
US average: 0.5%
from 3.1% in 2009
US average: 8.7%
Section 07
Work & employment from 10.1% in 2009
US average: 12.9%
from 33.3% in 2009
US average: 35.2%
Section 08
People & community from 2.6% in 2009
US average: 12.8%
from 13.4% in 2009
US average: 9.9%
Marital status (2024)
Men 15+
Never married 27.5%(1,938)
Women 15+
Never married 18.9%(1,263)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage Showing 2024 (the nearest year with coverage data).
from 5.9% in 2013
US average: 8.4%
from 64.0% in 2020
US average: 54.8%
Direct-purchase
from 15.0% in 2020
US average: 13.8%
from 17.9% in 2020
US average: 18.4%
from 11.0% in 2020
US average: 20.9%
VA health care
from 3.3% in 2020
US average: 2.2%
Any private
from 79.0% in 2020
US average: 67.1%
Any public
from 27.4% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2024
Gulf War (2001 or later) 33.9%(332)
Share of the 979 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
Places similar to Union County Head to head
Compare Union County to nearby counties UNION COUNTY VS
Clay County
Income $56,850 −5%
Home value $232,300 +76%
Population 15,031 −14%
SEE FULL COMPARISON →
UNION COUNTY VS
Plymouth County
Income $83,251 +39%
Home value $228,900 +73%
Population 25,697 +48%
SEE FULL COMPARISON →
UNION COUNTY VS
Dixon County
Income $72,454 +21%
Home value $155,900 +18%
Population 5,602 −68%
SEE FULL COMPARISON →
UNION COUNTY VS
Sioux County
Income $86,098 +44%
Home value $250,100 +89%
Population 36,774 +111%
SEE FULL COMPARISON →
Frequently asked
How many people live in Union County, South Dakota? Union County, South Dakota has about 14,399 residents according to the 2010 American Community Survey.
What is the median household income in Union County, South Dakota? The typical household in Union County, South Dakota earns about $59,889 a year. Half of households make more than that, and half make less.
Is Union County, South Dakota expensive? In Union County, South Dakota, the median home is worth about $132,200, and the typical rent is about $671 a month.
How educated are people in Union County, South Dakota? About 29.1% of adults age 25 and over in Union County, South Dakota hold a bachelor's degree or higher.
What is the poverty rate in Union County, South Dakota? About 4.9% of people in Union County, South Dakota live below the federal poverty line.
Has Union County, South Dakota grown since 1990? Yes, Union County, South Dakota has grown since 1990. The population has added about 4,210 residents, a change of about 41 percent over that period.
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