Buffalo County vs Sully County
A side-by-side comparison of Buffalo County and Sully County: population, income, housing, and more.
Buffalo County and Sully County are counties in South Dakota. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
Buffalo County has the higher population (1,757 vs 1,481 in Sully County). Sully County has the higher median household income ($70,250 vs $47,000 in Buffalo County). Sully County has the higher median home value ($198,700 vs $108,000 in Buffalo County).
Population, income & housing
| Buffalo County | Sully County | |
|---|---|---|
| Population | 1,757 | 1,481 |
| Median age | 26.2 yrs | 51.4 yrs |
| Median household income | $47,000 | $70,250 |
| Median home value | $108,000 | $198,700 |
| Median gross rent | $535 | $913 |
| Housing units | 577 | 908 |
| Homeownership rate | 52.6% | 76.1% |
| Bachelor's degree or higher | 7.0% | 20.9% |
| Unemployment rate | 9.7% | 0.0% |
Trends (ACS 5-year, 2019–2023)
| Buffalo County | Sully County | |
|---|---|---|
| Population | 2,026 → 1,757 (-13.3%) | 1,305 → 1,481 (+13.5%) |
| Median household income | $34,808 → $47,000 (+35.0%) | $62,153 → $70,250 (+13.0%) |
| Median home value | $49,000 → $108,000 (+120.4%) | $144,100 → $198,700 (+37.9%) |
| Median gross rent | $437 → $535 (+22.4%) | $582 → $913 (+56.9%) |
Buffalo County
2,0261,757
$34,808$47,000
$49,000$108,000
$437$535
Sully County
1,3051,481
$62,153$70,250
$144,100$198,700
$582$913
Age & race/ethnicity
Age distribution (share)
| Buffalo County | Sully County | |
|---|---|---|
| Under 5 | 12.1% | 4.7% |
| 5 to 17 | 24.1% | 14.7% |
| 18 to 24 | 11.6% | 6.1% |
| 25 to 34 | 10.1% | 10.3% |
| 35 to 44 | 13.0% | 6.8% |
| 45 to 54 | 9.7% | 14.2% |
| 55 to 64 | 10.0% | 19.3% |
| 65 to 74 | 5.9% | 14.3% |
| 75 and over | 3.4% | 9.5% |
Race & ethnicity (share)
| Buffalo County | Sully County | |
|---|---|---|
| White (non-Hispanic) | 21.2% | 92.5% |
| Black or African American | 0.0% | 5.0% |
| American Indian & Alaska Native | 73.4% | 0.0% |
| Asian | 0.0% | 0.0% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 1.0% | 0.5% |
| Two or more races | 1.1% | 2.0% |
| Hispanic or Latino | 3.3% | 0.0% |
Educational attainment (age 25+)
Share of adults 25+
| Buffalo County | Sully County | |
|---|---|---|
| No high school diploma | 14.4% | 3.8% |
| High school graduate | 47.6% | 39.3% |
| Some college or associate's | 31.0% | 36.0% |
| Bachelor's degree | 4.5% | 17.9% |
| Graduate or professional degree | 2.5% | 3.1% |
Commute to work
How workers get to work (share)
| Buffalo County | Sully County | |
|---|---|---|
| Drove alone | 76.7% | 67.3% |
| Carpooled | 3.1% | 12.6% |
| Public transit | 0.0% | 0.0% |
| Walked | 5.2% | 3.1% |
| Bicycle | 0.0% | 0.0% |
| Worked from home | 12.9% | 15.4% |
| Other means | 2.1% | 1.6% |
Housing
Units in structure (share)
| Buffalo County | Sully County | |
|---|---|---|
| 1-unit, detached | 65.9% | 75.2% |
| 1-unit, attached | 1.7% | 0.6% |
| 2 to 4 units | 2.1% | 2.0% |
| 5 to 19 units | 5.5% | 0.0% |
| 20 or more units | 1.0% | 3.6% |
| Mobile home & other | 23.7% | 18.6% |
Poverty & households
| Buffalo County | Sully County | |
|---|---|---|
| Poverty rate | 32.5% | 7.9% |
| Average household size | 3.54 | 2.37 |
| Mean commute (minutes) | 14 | 17 |
| Median year structure built | 1976 | 1975 |
Full profiles
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