Get ready-to-use data, reports, analysis, and visualizations covering the demographics of Union County, South Dakota based on the current United States Census Bureau's 2023 American Community Survey (ACS) 5-Year Estimates.
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Union County, South Dakota Demographics: Sex by Age
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, the total population of Union County, South Dakota is 16,916. The median age of the population in Union County, South Dakota is 40.4. The median age for males is 38.2 years, and for females, it is 42.7 years.
The age distribution of the population in Union County, South Dakota is as follows:
- Under 5 years: 5.33%
- 5–17 years (children): 18.86%
- 18–24 years (young adults): 6.86%
- 25–34 years: 12.19%
- 35–54 years: 24.88%
- 55–64 years: 12.99%
- 65 years and over (seniors): 18.89%
The total dependency ratio in Union County, South Dakota is 75.70%. The youth dependency ratio is 42.50%, and the old-age dependency ratio is 33.19%. In demographic terms, the dependency ratio measures the size of the population typically not in the labor force (children and older adults) relative to those of working age.
Union County, South Dakota Demographics: Population by Race & Ethnicity
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, the breakdown of the population in Union County, South Dakota by race and ethnicity (racial demographics) is as follows:
- White: 89.01%
- Black/African American: 0.84%
- American Indian and Alaska Native: 0.87%
- Asian: 1.41%
- Native Hawaiian or Other Pacific Islander: 0.07%
- Some other race: 0.22%
- Two or more races: 3.16%
- Hispanic or Latino: 4.42%
The diversity index score in Union County, South Dakota is 20.44%, suggesting a low level of diversity.
Union County, South Dakota Demographics: Household Income
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, the median household income in Union County, South Dakota over the past 12 months, adjusted for 2023 inflation, was $84,137.
The distribution of household income by income bracket in Union County, South Dakota is as follows:
- Less than $20,000: 8.35%
- $20,000–$34,999: 8.10%
- $35,000–$49,999: 11.71%
- $50,000–$74,999: 15.10%
- $75,000–$149,999: 33.93%
- $150,000 or more: 22.81%
Union County, South Dakota Demographics: Educational Attainment
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, the breakdown of the total population of Union County, South Dakota, age 25 and older, by educational level is as follows:
- Less than high school graduate: 5.08%
- High school graduate (incl. equivalency): 28.04%
- Some college or associate's degree: 30.37%
- Bachelor's Degree: 22.80%
- Graduate or professional degree: 13.71%
In Union County, South Dakota, 36.51% of the population has a bachelor's degree or higher, while 94.92% are high school graduates or higher.
Union County, South Dakota Demographics: Health Insurance Coverage Status by Sex by Age
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, the uninsured rate in Union County, South Dakota is 5.15%.
Rates of people in Union County, South Dakota lacking health insurance coverage, by age group and sex are as follows:
- Under 18: 0.00% of males and 9.58% of females are uninsured
- Ages 18–34: 4.17% of males and 6.38% of females are uninsured
- Ages 35–64: 11.66% of males and 5.28% of females are uninsured
- Ages 65 and older: 0.31% of males and 1.12% of females are uninsured
Union County, South Dakota Demographics: Nativity and Citizenship Status in the United States
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, 98.60% of people living in Union County, South Dakota are U.S. citizens. This includes individuals born in the United States, Puerto Rico, or U.S. Island Areas, those born abroad to American parents, and those who became citizens through naturalization. 0.96% of the population obtained U.S. citizenship through the naturalization process. In Union County, South Dakota, 0.96% of the population are naturalized immigrants, who obtained U.S. citizenship through the immigration and naturalization process.
Union County, South Dakota Demographics: Means of Transportation to Work
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, the means of transportation to work for the population of Union County, South Dakota are distributed as follows:
- Car, truck, or van: 89.56%
- Public transportation (excluding taxicab): 0.00%
- Bicycle: 0.33%
- Walked: 1.39%
- Taxicab, motorcycle, or other means: 1.23%
- Worked from home: 7.49%
Frequently Asked Questions
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, the age breakdown of the population of Union County, South Dakota is as follows:
- Under 5: 5.33%
- Ages 5–17: 18.86%
- Ages 18–24: 6.86%
- Ages 25–34: 12.19%
- Ages 35–54: 24.88%
- Ages 55–64: 12.99%
- 65 or older: 18.89%
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, the racial demographics of the population of Union County, South Dakota are as follows:
- White: 89.01%
- Black/African American: 0.84%
- American Indian and Alaska Native: 0.87%
- Asian: 1.41%
- Native Hawaiian or Other Pacific Islander: 0.07%
- Some other race: 0.22%
- Two or more races: 3.16%
- Hispanic or Latino: 4.42%
* Hispanic includes respondents of any race. Other categories are non-Hispanic.
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, the distribution of household income in Union County, South Dakota by income bracket is as follows:
- Less than $20,000: 8.35%
- $20,000–$34,999: 8.10%
- $35,000–$49,999: 11.71%
- $50,000–$74,999: 15.10%
- $75,000–$149,999: 33.93%
- $150,000 or more: 22.81%
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, the median household income in Union County, South Dakota in the past 12 months, in 2023 inflation-adjusted dollars, was $84,137.
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, 89.01% of the population in Union County, South Dakota identifies as White alone (not Hispanic or Latino).
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, 0.84% of the population in Union County, South Dakota identifies as Black or African American alone (not Hispanic or Latino).
According to the U.S. Census Bureau’s 2023 American Community Survey (ACS) 5-Year Estimates, 5.15% of the population of Union County, South Dakota lacks health insurance coverage.
The detailed breakdown by age and sex is as follows:
- Under 18: 0.00% of males and 9.58% of females
- Ages 18–34: 4.17% of males and 6.38% of females
- Ages 35–64: 11.66% of males and 5.28% of females
- Ages 65 and over: 0.31% of males and 1.12% of females