Union County, South Dakota Population 2024

17,303

Union County, South Dakota's estimated 2024 population is 17,303 with a growth rate of 0.7% in the past year according to the most recent United States census data. Union County, South Dakota is the 13th largest county in South Dakota. The 2010 population was 14,488 and has seen a growth of 19.43% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
202917,9031200.67%
202817,7831200.68%
202717,6631200.68%
202617,5431200.69%
202517,4231200.69%
202417,3031200.7%
202317,1831200.7%
202217,0631871.11%
202116,876160.09%
202016,8608575.36%
201916,0033872.48%
201815,6163051.99%
201715,3111370.9%
201615,1742401.61%
201514,934-62-0.41%
201414,9962351.59%
201314,761-40-0.27%
201214,8011601.09%
201114,6411531.06%
201014,48800%
199010,189-749-6.85%
198010,9381,29513.43%
19709,643-554-5.43%
196010,197-595-5.51%
195010,792-883-7.56%
194011,6751951.7%
193011,4803813.43%
192011,0994233.96%
191010,676-477-4.28%
190011,1532,02322.16%
18909,1302,31734.01%
18806,8133,30694.27%
18703,507-14,396-80.41%
2024 Growth Rate
0.7% (120)
County Website
Union County
2020 Population
16,860
Area
461 mi²
Density
38 people/mi²
Growth Since 2020
2.63% (443)
Founded
April 10, 1862

Population by Race

Race
Population
Percentage (of total)
White15,29390.41%
Two or more races8735.16%
Asian2381.41%
Native American1951.15%
Other race1630.96%
Black or African American1420.84%
Native Hawaiian or Pacific Islander120.07%

White

Two or more races

Asian

Native American

Other race

Black or African American

Native Hawaiian or Pacific Islander

Union County, South Dakota Population by Race

Union County, South Dakota Population Pyramid 2024

Union County, South Dakota Median Age

40.4

Total

38.2

Male

42.7

Female

Union County, South Dakota Adults

There are 12,824 adults, (3,196 of whom are seniors) in Union County, South Dakota.

Union County, South Dakota Age Dependency

75.7

Age Dependency Ratio

33.2

Old Age Dependency Ratio

42.5

Child Dependency Ratio

Union County, South Dakota Sex Ratio

Female8,27248.9%
Male8,64451.1%

Union County, South Dakota Population by Age

Union County, South Dakota Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All7,1242.3671.328.7
Married4,0542.8887.612.4
Non Family2,3221.2347.652.4
Female4402.8853.446.6
Male3083.1460.439.6

2.83

Average Family Size

2.36

Average Household Size

71.3%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Union County, South Dakota Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade3492.99%
Associates Degree1,44612.4%
Bachelors Degree2,65922.8%
Graduate Degree1,59913.71%
High School Graduate3,27028.04%
Less Than 9th Grade2442.09%
Some College2,09617.97%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Union County, South Dakota Educational Attainment by Sex (over 25)

Union County, South Dakota Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White10,62810,1303,890
2+ Races412390175
Hispanic373330108
Asian174168127
Black1091050
Native American1079225
Other Race946710

The highest rate of high school graduation is among asian people with a rate of 96.55%.

The highest rate of bachelors degrees is among asian people with a rate of 72.99%.

Union County, South Dakota Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$64,483$90,271$53,659
Graduate Degree$89,321$233,110$80,727
High School Graduate$40,073$44,488$26,619
Less Than 9th Grade$50,284$51,534$0
Overall$54,908$64,205$45,317
Some College$53,448$68,100$41,598

$54,908

Average Earnings

$64,205

Average Male

$45,317

Average Female

Union County, South Dakota Earnings by Educational Attainment

Union County, South Dakota Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Union County, South Dakota Language

96.15% of Union County, South Dakota residents speak only English, while 3.85% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 2.04% of the population.

Union County, South Dakota Language

Union County, South Dakota Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White14,8861,1267.56%
Hispanic7488611.5%
Other1636942.33%
Multiple87340.46%
Native17621.14%

7.29%

Overall Poverty Rate

5.16%

Male Poverty Rate

9.53%

Female Poverty Rate

Poverty in Union County, South Dakota

The race most likely to be in poverty in Union County, South Dakota is Other, with 42.33% below the poverty level.

The race least likely to be in poverty in Union County, South Dakota is Multiple, with 0.46% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.17%. Among those working part-time, it was 13.39%, and for those that did not work, the poverty rate was 14.34%.

Union County, South Dakota Poverty

rate

Rate
Poverty
Less Than 9th Grade13.95%
High School10.11%
Some College6.24%
Bachelors or Greater4.63%

Union County, South Dakota Poverty Rate by Education

rate

Rate
Poverty
Male Unemployed24.06%
Female Unemployed12.21%
Female Employed4.13%
Male Employed2.48%

Union County, South Dakota Poverty Rate by Employment Status and Sex

Union County, South Dakota Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$107,311$142,096
Households$84,137$116,720
Married Families$116,262$-999,999,999
Non Families$49,559$59,194

mean

median

Income by Household Type

Union County, South Dakota Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

60.5%

Overall Marriage Rate

59.2%

Male Marriage Rate

61.9%

Female Marriage Rate

Union County, South Dakota Married by Age and Sex

male

female

Union County, South Dakota Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.

Union County, South Dakota Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Union County, South Dakota Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

986

Number of Veterans

929

Male Veterans

57

Female Veterans

War
Veterans
Vietnam390
Second Gulf War268
First Gulf War250
Korea27
World War II11

Union County, South Dakota Veterans by War

count

Age Group
Veterans
65 to 74324
75+235
35 to 54159
55 to 64152
18 to 34116

Union County, South Dakota Veterans by Age

count

Name
Veterans
% of Total
White9267.85%
Black3431.19%
2+ Races204.94%
Hispanic102.1%
Asian63.45%

Union County, South Dakota Veterans by Race

Union County, South Dakota Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

9.19%

Veteran Poverty Rate

31.1%

Veteran Disability Rate

Union County, South Dakota Veterans by Education

LaborForceParticipation

67.4%

Labor Force Participation

64.6%

Employment Rate

3.5%

Unemployment Rate

Union County, South Dakota Employment by Age

LaborForceParticipation

Union County, South Dakota Employment by Race

LaborForceParticipation

Union County, South Dakota Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

27.73%

Born in Union County, South Dakota

97.64%

Native Born

2.36%

Foreign Born

1.4%

Non Citizen

0.96%

Naturalized

Place of Birth

97.64% of Union County, South Dakota residents were born in the United States, with 27.73% having been born in South Dakota. 1.4% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Union County, South Dakota Place of Birth

Sources