How many people live in Ziebach County, SD?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 2,400 people living in Ziebach County, SD. That makes Ziebach County the 52nd-most populous county in South Dakota. It is home to 0.26% of people living in the state.
2.42K
population of Ziebach County, SD (2024)
0.26%
County share of the South Dakota population (2024)
About 2,400 people lived in Ziebach County, SD in 2024.
Population estimates, 2000–2024
What are Ziebach County, SD’s age demographics?
About 303 Ziebach County residents are aged 65 and older in 2024. That represents 12.5% of its population. For comparison, the age group represents 18.9% of South Dakota’s population and 18% in the US overall.
Another 625 Ziebach County residents, or 25.8% 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 lower share of Ziebach County, SD's population is aged 65 or older than the US as a whole.
Population estimates by age group, (2024)
What are Ziebach County, SD’s racial and ethnic demographics?
Non-Hispanic American Indian and Alaska Native residents make up 66% of the Ziebach County population, higher than the national share of 0.72%. Ziebach County also has a larger share of people identifying as non-Hispanic two or more races (4.5%) than the US overall (2.5%).
In contrast, Ziebach County’s non-Hispanic white population accounts for 26.2%, below the 57.5% nationwide, and the Hispanic population makes up 2.2% of the county, compared with 20% 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.
Ziebach County, SD has a higher share of a non-Hispanic American Indian and Alaska Native population than South Dakota as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Ziebach County, SD is Eagle Butte with about 620 residents in 2024.
Cities and towns in Ziebach County, SD ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Eagle Butte (pt.) | 620 |
| 2. | Dupree | 496 |
| 3. | Balance of Ziebach County | 1,302 |
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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.
