How many people live in Oglala Lakota County, SD?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 13,400 people living in Oglala Lakota County, SD. That makes Oglala Lakota County the 15th-most populous county in South Dakota. It is home to 1.4% of people living in the state.
13.4K
population of Oglala Lakota County, SD (2024)
1.4%
County share of the South Dakota population (2024)
About 13,400 people lived in Oglala Lakota County, SD in 2024.
Population estimates, 2010–2024
What are Oglala Lakota County, SD’s age demographics?
About 1,100 Oglala Lakota County residents are aged 65 and older in 2024. That represents 8% of its population. For comparison, the age group represents 18.9% of South Dakota’s population and 18% in the US overall.
Another 4,700 Oglala Lakota County residents, or 35% 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 Oglala Lakota County, SD's population is aged under 18 than the US as a whole.
Population estimates by age group, (2024)
What are Oglala Lakota County, SD’s racial and ethnic demographics?
Non-Hispanic American Indian and Alaska Native residents make up 85.9% of the Oglala Lakota County population, higher than the national share of 0.72%.
In contrast, Oglala Lakota County’s non-Hispanic white population accounts for 7.6%, below the 57.5% nationwide, and the Hispanic population makes up 3.9% 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.
Oglala Lakota 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 Oglala Lakota County, SD is Batesland with about 74 residents in 2024.
Cities and towns in Oglala Lakota County, SD ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Batesland | 74 |
| 2. | Balance of Oglala Lakota County | 13,286 |
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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.
