Bennett County's estimated 2026 population is 3,243 with a growth rate of -0.7% in the past year according to the most recent United States census data. Bennett County is the 45th largest county in South Dakota. The 2010 population was 3,451 and has seen a growth of -6.03% since that time.
Data after 2023 is projected based on recent change
The racial composition of Bennett County includes 57.54% Native American, 37.33% White, and smaller percentages for Two or more races, Asian, other race, Black or African American and multiracial populations.
Native American (57.54%)
White (37.33%)
Two or more races (2.36%)
Asian (1.61%)
Other race (0.98%)
Black or African American (0.18%)
Race | Population | Percentage (of total) |
|---|---|---|
| Native American | 1,930 | 57.54% |
| White | 1,252 | 37.33% |
| Two or more races | 79 | 2.36% |
| Asian | 54 | 1.61% |
| Other race | 33 | 0.98% |
| Black or African American | 6 | 0.18% |
Married
Widowed
Divorced
Separated
Never Married
Bennett County's average per capita income is $39,219. Household income levels show a median of $44,569. The poverty rate stands at 31.94%.
Name | Median | Mean |
|---|---|---|
| Married Families | $85,179 | - |
| Families | $49,805 | $66,745 |
| Households | $44,569 | $59,699 |
| Non Families | $38,854 | $40,742 |
Average Income
Median Household Income
Poverty Rate