Ziebach County's estimated 2026 population is 2,397 with a growth rate of 0.33% in the past year according to the most recent United States census data. Ziebach County is the 53rd largest county in South Dakota. The 2010 population was 2,826 and has seen a growth of -15.18% since that time.
Data after 2023 is projected based on recent change
Overall: 36.7 years
Female: 36.1 years
Male: 38.3 years
There are 1,777 adults, (279 of whom are seniors) in Ziebach County.
Female: 1,192 (50.1%)
Male: 1,185 (49.9%)
The racial composition of Ziebach County includes 69.79% Native American, 27.22% White, and smaller percentages for Two or more races, Native Hawaiian or Pacific Islander, other race and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| Native American | 1,659 | 69.79% |
| White | 647 | 27.22% |
| Two or more races | 60 | 2.52% |
| Native Hawaiian or Pacific Islander | 7 | 0.29% |
| Other race | 4 | 0.17% |
Ziebach County's average per capita income is $38,205. Household income levels show a median of $53,958. The poverty rate stands at 33.49%.
Name | Median | Mean |
|---|---|---|
| Married Families | $91,250 | - |
| Households | $53,958 | $81,078 |
| Families | $48,000 | $85,518 |
| Non Families | $44,464 | $53,173 |
Average Income
Median Household Income
Poverty Rate