Clay County, SD
Demographics & Statistics
Updated: 2025-10-25
Updated: 2025-10-25
Life in Clay County research summary. HomeSnacks has been researching the quality of life in Clay 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 Clay County:
The population in Clay County is 15,133.
The median home value in Clay County is $280,124.
The median income in Clay County is $58,794.
The median rent in Clay County is $736.
The unemployment rate in Clay County is 8.4%.
The poverty rate in Clay County is 19.8%.
The average high in Clay County is 68.1° and there are 68.0 inches of rainfall annually.
The average high in Clay County is 68.1°.
There are 71.79 nice days each year.
Expect an average of 68.0 inches of rain each year with 11.4 inches of snow.
There is an average of 5:36 hours of sun each day in Clay County.
| Stat | Clay County |
|---|---|
| Mean High | 68.1 |
| Nice Days | 71.79 |
| Rainfall | 68.0 |
| Snowfall | 11.4 |
| Sunny Hours | 5:36 |
The current population in Clay County is 15,133. The population has increased 6.2% from 2019.
| Year | Population | % Change |
|---|---|---|
| 2023 | 14,816 | 5.3% |
| 2022 | 14,076 | 0.9% |
| 2021 | 13,957 | - |
Clay County is 50.5% female with 7,640 female residents.
Clay County is 49.5% male with 7,493 male residents.
| Gender | Clay County | SD | USA |
|---|---|---|---|
| Female | 50.5% | 49.3% | 50.5% |
| Male | 49.5% | 50.7% | 49.5% |
Clay County is:
86.4% White with 13,077 White residents.
2.0% African American with 304 African American residents.
2.6% American Indian with 387 American Indian residents.
3.0% Asian with 457 Asian residents.
0.0% Hawaiian with 6 Hawaiian residents.
0.0% Other with 7 Other residents.
2.7% Two Or More with 407 Two Or More residents.
3.2% Hispanic with 488 Hispanic residents.
| Race | Clay County | SD | USA |
|---|---|---|---|
| White | 86.4% | 80.3% | 58.2% |
| African American | 2.0% | 2.2% | 12.0% |
| American Indian | 2.6% | 7.4% | 0.5% |
| Asian | 3.0% | 1.4% | 5.7% |
| Hawaiian | 0.0% | 0.1% | 0.2% |
| Other | 0.0% | 0.3% | 0.5% |
| Two Or More | 2.7% | 3.9% | 3.9% |
| Hispanic | 3.2% | 4.6% | 19.0% |
11.0% of households in Clay County earn Less than $10,000.
5.9% of households in Clay County earn $10,000 to $14,999.
8.1% of households in Clay County earn $15,000 to $24,999.
5.7% of households in Clay County earn $25,000 to $34,999.
12.6% of households in Clay County earn $35,000 to $49,999.
16.1% of households in Clay County earn $50,000 to $74,999.
13.4% of households in Clay County earn $75,000 to $99,999.
15.0% of households in Clay County earn $100,000 to $149,999.
6.8% of households in Clay County earn $150,000 to $199,999.
5.4% of households in Clay County earn $200,000 or more.
| Income | Clay County | SD | USA |
|---|---|---|---|
| Less than $10,000 | 11.0% | 4.0% | 4.9% |
| $10,000 to $14,999 | 5.9% | 3.4% | 3.6% |
| $15,000 to $24,999 | 8.1% | 7.1% | 6.6% |
| $25,000 to $34,999 | 5.7% | 7.5% | 6.8% |
| $35,000 to $49,999 | 12.6% | 11.9% | 10.4% |
| $50,000 to $74,999 | 16.1% | 17.8% | 15.7% |
| $75,000 to $99,999 | 13.4% | 14.6% | 12.7% |
| $100,000 to $149,999 | 15.0% | 18.2% | 17.4% |
| $150,000 to $199,999 | 6.8% | 8.1% | 9.3% |
| $200,000 or more | 5.4% | 7.4% | 12.6% |
2.0% of adults in Clay County completed < 9th grade.
4.0% of adults in Clay County completed 9-12th grade.
26.0% of adults in Clay County completed high school / ged.
14.0% of adults in Clay County completed some college.
8.0% of adults in Clay County completed associate's degree.
25.0% of adults in Clay County completed bachelor's degree.
12.0% of adults in Clay County completed master's degree.
2.0% of adults in Clay County completed professional degree.
7.0% of adults in Clay County completed doctorate degree.
| Education | Clay County | SD | USA |
|---|---|---|---|
| < 9th Grade | 1% | 3% | 5% |
| 9-12th Grade | 4% | 4% | 6% |
| High School / GED | 26% | 28% | 26% |
| Some College | 14% | 20% | 19% |
| Associate's Degree | 8% | 12% | 9% |
| Bachelor's Degree | 25% | 22% | 21% |
| Master's Degree | 12% | 7% | 10% |
| Professional Degree | 2% | 2% | 2% |
| Doctorate Degree | 7% | 1% | 2% |
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