United States › South Dakota › Union County COUNTY · 1990 CENSUS
Union County South Dakota · 10,189 residents · 461 sq mi
Time machine
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The short version
With 10,189 people, Union County is a county in South Dakota. Median home value sits at $37,600. Owners hold 73% of the housing stock. Median rent is $266 a month. 14% of adults hold a bachelor's degree or higher. There are 2,395 fewer people here than in 2000.
At a glance
Lower income
below the US median
US median: $30,130
Older
median age 35.0
US median: 33.0
Less educated
14% hold a bachelor's degree
US average: 20%
More affordable
home values down 42%, inflation adjusted
US median home: $93,722
Section 01
Population & growth vs 36.9 in 2000
US average: 33.0
Population, 1990 – 2024
9K 12K 14K 16K 18K 1990 2000 2010 2020 2024 Union County Age distribution, 1990
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $22,274
−34%inflation adjusted, since 2000
vs $44,790 in 2000
US average: $30,130
vs $24,355 in 2000
US average: $14,340
vs 5.5% in 2000
US average: 13.2%
$37,600
−42%inflation adjusted, since 2000
vs $85,200 in 2000
US average: $93,722
$266
−31%inflation adjusted, since 2000
vs $505 in 2000
US average: $450
vs 74.4% in 2000
27.3% rent
Section 04
Race & ethnicity 2000
White, non-Hispanic 96%(12,081)
Hispanic / Latino 1.3%(158)
1990
White, non-Hispanic 99.1%(10,096)
Hispanic / Latino 0.9%(91)
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 vs 26.3% in 2000
US average: 20.3%
High school or higher
vs 87.2% in 2000
US average: 75.2%
vs 8.8% in 2000
US average: 7.1%
Section 06
Commute & transportation vs 12.5 min in 2000
US average: 21.9
Section 07
Work & employment No data for the years selected.
Section 08
People & community No data for the years selected.
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.
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 +155%
Home value $232,300 +518%
Population 15,031 −14%
SEE FULL COMPARISON →
UNION COUNTY VS
Plymouth County
Income $83,251 +274%
Home value $228,900 +509%
Population 25,697 +48%
SEE FULL COMPARISON →
UNION COUNTY VS
Dixon County
Income $72,454 +225%
Home value $155,900 +315%
Population 5,602 −68%
SEE FULL COMPARISON →
UNION COUNTY VS
Sioux County
Income $86,098 +287%
Home value $250,100 +565%
Population 36,774 +111%
SEE FULL COMPARISON →
Frequently asked
How many people live in Union County, South Dakota? Union County, South Dakota has about 10,189 residents according to the 1990 Census.
What is the median household income in Union County, South Dakota? The typical household in Union County, South Dakota earns about $22,274 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 $37,600, and the typical rent is about $266 a month.
How educated are people in Union County, South Dakota? About 13.9% 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 13.0% of people in Union County, South Dakota live below the federal poverty line.
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