United States › South Dakota › Union County COUNTY · 2000 CENSUS
Union County South Dakota · 12,584 residents · 461 sq mi
Time machine
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The short version
With 12,584 people, Union County is a county in South Dakota. That is roughly 27% ahead of the South Dakota median. 2,395 more people live here than in 1990. 74% of homes are owner-occupied. Poverty is uncommon here, at 5.5% of people here. Home values have more than doubled since 1990, reaching $85,200.
At a glance
Wealthier
above the US median
US median: $42,589
Mid-age
median age 36.9
US median: 35.2
Average education
26% hold a bachelor's degree
US average: 24%
Less affordable
home values up 72%, inflation adjusted
US median home: $120,530
Section 01
Population & growth from 35.0 in 1990
US average: 35.2
Population, 1990 – 2024
9K 12K 14K 16K 18K 1990 2000 2010 2020 2024 Union County Age distribution, 2000
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $44,790
+53%inflation adjusted, since 1990
from $22,274 in 1990
US average: $42,589
from $9,997 in 1990
US average: $21,522
from 13.0% in 1990
US average: 12.4%
$85,200
+72%inflation adjusted, since 1990
from $37,600 in 1990
US average: $120,530
$505
+44%inflation adjusted, since 1990
from $266 in 1990
US average: $602
from 72.7% in 1990
25.6% rent
Section 04
Race & ethnicity 1990
White, non-Hispanic 99.1%(10,096)
Hispanic / Latino 0.9%(91)
2000
White, non-Hispanic 96%(12,081)
Hispanic / Latino 1.3%(158)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry Detailed origin tables are available for 2024; showing 2024 data.
Ancestry
+ 17 more ancestry groups with data from 13.9% in 1990
US average: 24.4%
High school or higher
from 74.2% in 1990
US average: 80.3%
from 4.8% in 1990
US average: 8.8%
Section 06
Commute & transportation from 27.8 min in 1990
US average: 17.6
Section 07
Work & employment No data for the years selected.
Section 08
People & community No data for the years selected.
Marital status
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
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.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Drill deeper
Places similar to Union County Head to head
Compare Union County to nearby counties UNION COUNTY VS
Clay County
Income $56,850 +27%
Home value $232,300 +173%
Population 15,031 −14%
SEE FULL COMPARISON →
UNION COUNTY VS
Plymouth County
Income $83,251 +86%
Home value $228,900 +169%
Population 25,697 +48%
SEE FULL COMPARISON →
UNION COUNTY VS
Dixon County
Income $72,454 +62%
Home value $155,900 +83%
Population 5,602 −68%
SEE FULL COMPARISON →
UNION COUNTY VS
Sioux County
Income $86,098 +92%
Home value $250,100 +194%
Population 36,774 +111%
SEE FULL COMPARISON →
Frequently asked
How many people live in Union County, South Dakota? Union County, South Dakota has about 12,584 residents according to the 2000 Census.
What is the median household income in Union County, South Dakota? The typical household in Union County, South Dakota earns about $44,790 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 $85,200, and the typical rent is about $505 a month.
How educated are people in Union County, South Dakota? About 26.3% 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 5.5% 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 2,395 residents, a change of about 24 percent over that period.
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