How many people live in McPherson County, SD?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 2,300 people living in McPherson County, SD. That makes McPherson County the 55th-most populous county in South Dakota. It is home to 0.25% of people living in the state.
2.31K
population of McPherson County, SD (2024)
0.25%
County share of the South Dakota population (2024)
About 2,300 people lived in McPherson County, SD in 2024.
Population estimates, 2000–2024
What are McPherson County, SD’s age demographics?
About 726 McPherson County, SD residents are aged 65 and older in 2024. That represents 31.5% of its population. For comparison, the age group represents 18.9% of South Dakota’s population and 18% in the US overall.
Another 497 McPherson County residents, or 21.5% of the population, were children under 18. For comparison, the age group represents 24% of South Dakota’s population and 21.6% in the US overall.
A higher share of McPherson County, SD's population is aged 65 or older than the US as a whole.
Population estimates by age group, (2024)
What are McPherson County, SD’s racial and ethnic demographics?
Non-Hispanic white residents make up 93.3% of the McPherson County, SD population, higher than the national share of 57.5%. McPherson County, SD also has a larger share of people identifying as non-Hispanic American Indian and Alaska Native (0.95%) than the US overall (0.72%).
In contrast, McPherson County’s Hispanic population accounts for 3.2%, below the 20% nationwide, and the non-Hispanic Black or African American population makes up 0.69% of the county, compared with 12.6% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
McPherson County, SD has a higher share of a non-Hispanic white population than South Dakota as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in McPherson County, SD is Eureka with about 759 residents in 2024.
Cities and towns in McPherson County, SD ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Eureka | 759 |
| 2. | Central McPherson UT | 514 |
| 3. | Leola | 406 |
| 4. | West McPherson UT | 253 |
| 5. | Weber | 237 |
| 6. | Wachter | 32 |
| 7. | Carl | 29 |
| 8. | Long Lake | 26 |
| 9. | Hoffman | 19 |
| 10. | Wacker | 16 |
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
