Buffalo County, South Dakota
Buffalo County, South Dakota, had an estimated population of 1,802 in 2025 across 1,221 km². The figures below come from the US Census Bureau's population estimates and the American Community Survey, each shown with its own vintage and its rank among South Dakota's counties and nationally.
- Population
- 1,802
- 2025 estimate
- Area
- 1,221 km²
- Density
- 1
- per km²
- Median income
- $47,045
- household, ACS 2024
- Median age
- 22.8
- years, ACS 2024
How South Dakota's counties spread
Amenities & Infrastructure
| Indicator | Value | In South Dakota | In the US |
|---|---|---|---|
| Households with Broadband2024 | 68.7% | 64 / 66 | 3,107 / 3,144 |
| Median Gross Rent2024 | $540 | 62 / 66 | 3,093 / 3,137 |
| Median Home Value2024 | $117,800 | 56 / 66 | 2,680 / 3,139 |
| Owner-Occupied Homes2024 | 52.6% | 63 / 66 | 3,069 / 3,144 |
| Vacant Homes2024 | 12.1% | 46 / 66 | 1,868 / 3,144 |
Demography
| Indicator | Value | In South Dakota | In the US |
|---|---|---|---|
| Aged 65 and Over2024 | 9.2% | 64 / 66 | 3,131 / 3,144 |
| American Indian & Alaska Native2024 | 78.2% | 3 / 66 | 8 / 3,144 |
| Asian, non-Hispanic2024 | 0.0% | 46 / 66 | 2,833 / 3,144 |
| Average Household Size2024people | 3.6 | 4 / 66 | 11 / 3,144 |
| Black, non-Hispanic2024 | 0.0% | 48 / 66 | 3,009 / 3,144 |
| Foreign-Born2024 | 0.0% | 62 / 66 | 3,128 / 3,144 |
| Hispanic or Latino2024 | 1.7% | 47 / 66 | 2,783 / 3,144 |
| Median Age2024years | 22.8 | 66 / 66 | 3,142 / 3,144 |
| Sex Ratio2024per 1,000 males | 790 | 65 / 66 | 3,035 / 3,144 |
| Speak a Language Other Than English2024 | 0.9% | 65 / 66 | 3,055 / 3,144 |
| Under 182024 | 39.2% | 1 / 66 | 3 / 3,144 |
| Veterans2024 | 10.5% | 6 / 66 | 283 / 3,144 |
| White, non-Hispanic2024 | 17.5% | 64 / 66 | 3,100 / 3,144 |
Economy
| Indicator | Value | In South Dakota | In the US |
|---|---|---|---|
| Below Poverty Line2024 | 33.9% | 6 / 66 | 22 / 3,144 |
| Households on SNAP2024 | 23.6% | 6 / 66 | 205 / 3,144 |
| Income Inequality2024index | 0.495 | 12 / 66 | 291 / 3,144 |
| Median Household Income2024 | $47,045 | 62 / 66 | 2,894 / 3,143 |
| Per Capita Income2024 | $17,360 | 64 / 66 | 3,137 / 3,144 |
| Unemployment Rate2024 | 10.8% | 7 / 66 | 63 / 3,144 |
Education
| Indicator | Value | In South Dakota | In the US |
|---|---|---|---|
| Bachelor's Degree or Higher2024 | 9.9% | 66 / 66 | 3,104 / 3,144 |
| High School or Higher2024 | 88.1% | 57 / 66 | 2,013 / 3,144 |
Health Coverage
| Indicator | Value | In South Dakota | In the US |
|---|---|---|---|
| No Health Insurance2024 | 43.0% | 2 / 66 | 3 / 3,144 |
| With a Disability2024 | 13.6% | 25 / 66 | 2,263 / 3,144 |
Population & Density
| Indicator | Value | In South Dakota | In the US |
|---|---|---|---|
| Population2025 | 1,802 | 59 / 66 | 3,057 / 3,144 |
| Population Density2025/km² | 1 | 44 / 66 | 2,838 / 3,144 |
Work & Commute
| Indicator | Value | In South Dakota | In the US |
|---|---|---|---|
| Commute by Public Transit2024 | 0.0% | 32 / 66 | 2,161 / 3,144 |
| Households with No Vehicle2024 | 13.0% | 2 / 66 | 82 / 3,144 |
| Mean Commute Time2024minutes | 13.4 | 62 / 66 | 3,073 / 3,143 |
| Work from Home2024 | 12.3% | 20 / 66 | 735 / 3,144 |
Other counties of South Dakota
- Aurora County
- Beadle County
- Bennett County
- Bon Homme County
- Brookings County
- Brown County
- Brule County
- Butte County
- Campbell County
- Charles Mix County
- Clark County
- Clay County
- Codington County
- Corson County
- Custer County
- Davison County
- Day County
- Deuel County
- Dewey County
- Douglas County
- Edmunds County
- Fall River County
- Faulk County
- Grant County
- Gregory County
- Haakon County
- Hamlin County
- Hand County
- Hanson County
- Harding County
- Hughes County
- Hutchinson County
- Hyde County
- Jackson County
- Jerauld County
- Jones County
- Kingsbury County
- Lake County
- Lawrence County
- Lincoln County
- Lyman County
- Marshall County
- McCook County
- McPherson County
- Meade County
- Mellette County
- Miner County
- Minnehaha County
- Moody County
- Oglala Lakota County
- Pennington County
- Perkins County
- Potter County
- Roberts County
- Sanborn County
- Spink County
- Stanley County
- Sully County
- Todd County
- Tripp County
- Turner County
- Union County
- Walworth County
- Yankton County
- Ziebach County
Compare Buffalo County against every other county on a map, add layers and run a scatter — open the atlas. Sources and vintages for every figure on this page are listed under datasets, or browse all 3,144 counties.