Union County, SD
Demographics & Statistics
Updated: 2025-10-25
Updated: 2025-10-25
Life in Union County research summary. HomeSnacks has been researching the quality of life in Union County over the past eight years using Census data, FBI crime data, cost of living data, and other primary sources. Based on the most recently available data, we found the following about life in Union County:
The population in Union County is 16,916.
The median home value in Union County is $359,223.
The median income in Union County is $84,137.
The median rent in Union County is $1,055.
The unemployment rate in Union County is 3.5%.
The poverty rate in Union County is 7.3%.
The average high in Union County is 68.2° and there are 70.9 inches of rainfall annually.
The average high in Union County is 68.2°.
There are 72.41 nice days each year.
Expect an average of 70.9 inches of rain each year with 11.1 inches of snow.
There is an average of 5:33 hours of sun each day in Union County.
| Stat | Union County |
|---|---|
| Mean High | 68.2 |
| Nice Days | 72.41 |
| Rainfall | 70.9 |
| Snowfall | 11.1 |
| Sunny Hours | 5:33 |
The current population in Union County is 16,916. The population has increased 6.9% from 2019.
| Year | Population | % Change |
|---|---|---|
| 2023 | 16,424 | 4.9% |
| 2022 | 15,659 | 1.9% |
| 2021 | 15,368 | - |
Union County is 48.9% female with 8,272 female residents.
Union County is 51.1% male with 8,644 male residents.
| Gender | Union County | SD | USA |
|---|---|---|---|
| Female | 48.9% | 49.3% | 50.5% |
| Male | 51.1% | 50.7% | 49.5% |
Union County is:
89.0% White with 15,057 White residents.
0.8% African American with 142 African American residents.
0.9% American Indian with 148 American Indian residents.
1.4% Asian with 238 Asian residents.
0.1% Hawaiian with 12 Hawaiian residents.
0.2% Other with 37 Other residents.
3.2% Two Or More with 534 Two Or More residents.
4.4% Hispanic with 748 Hispanic residents.
| Race | Union County | SD | USA |
|---|---|---|---|
| White | 89.0% | 80.3% | 58.2% |
| African American | 0.8% | 2.2% | 12.0% |
| American Indian | 0.9% | 7.4% | 0.5% |
| Asian | 1.4% | 1.4% | 5.7% |
| Hawaiian | 0.1% | 0.1% | 0.2% |
| Other | 0.2% | 0.3% | 0.5% |
| Two Or More | 3.2% | 3.9% | 3.9% |
| Hispanic | 4.4% | 4.6% | 19.0% |
3.9% of households in Union County earn Less than $10,000.
2.7% of households in Union County earn $10,000 to $14,999.
4.8% of households in Union County earn $15,000 to $24,999.
5.1% of households in Union County earn $25,000 to $34,999.
11.7% of households in Union County earn $35,000 to $49,999.
15.1% of households in Union County earn $50,000 to $74,999.
15.5% of households in Union County earn $75,000 to $99,999.
18.4% of households in Union County earn $100,000 to $149,999.
9.8% of households in Union County earn $150,000 to $199,999.
13.0% of households in Union County earn $200,000 or more.
| Income | Union County | SD | USA |
|---|---|---|---|
| Less than $10,000 | 3.9% | 4.0% | 4.9% |
| $10,000 to $14,999 | 2.7% | 3.4% | 3.6% |
| $15,000 to $24,999 | 4.8% | 7.1% | 6.6% |
| $25,000 to $34,999 | 5.1% | 7.5% | 6.8% |
| $35,000 to $49,999 | 11.7% | 11.9% | 10.4% |
| $50,000 to $74,999 | 15.1% | 17.8% | 15.7% |
| $75,000 to $99,999 | 15.5% | 14.6% | 12.7% |
| $100,000 to $149,999 | 18.4% | 18.2% | 17.4% |
| $150,000 to $199,999 | 9.8% | 8.1% | 9.3% |
| $200,000 or more | 13.0% | 7.4% | 12.6% |
2.0% of adults in Union County completed < 9th grade.
3.0% of adults in Union County completed 9-12th grade.
28.0% of adults in Union County completed high school / ged.
18.0% of adults in Union County completed some college.
12.0% of adults in Union County completed associate's degree.
23.0% of adults in Union County completed bachelor's degree.
9.0% of adults in Union County completed master's degree.
4.0% of adults in Union County completed professional degree.
1.0% of adults in Union County completed doctorate degree.
| Education | Union County | SD | USA |
|---|---|---|---|
| < 9th Grade | 1% | 3% | 5% |
| 9-12th Grade | 3% | 4% | 6% |
| High School / GED | 28% | 28% | 26% |
| Some College | 18% | 20% | 19% |
| Associate's Degree | 12% | 12% | 9% |
| Bachelor's Degree | 23% | 22% | 21% |
| Master's Degree | 9% | 7% | 10% |
| Professional Degree | 4% | 2% | 2% |
| Doctorate Degree | 1% | 1% | 2% |
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