Ziebach County's estimated 2026 population is 2,610 with a growth rate of 3.82% in the past year according to the most recent United States census data. Ziebach County is the 52nd largest county in South Dakota. The 2010 population was 2,826 and has seen a growth of -7.64% since that time.
Data after 2023 is projected based on recent change
The racial composition of Ziebach County includes 70.58% Native American, 27.26% White, and smaller percentages for Two or more races, Native Hawaiian or Pacific Islander, other race and multiracial populations.
Native American (70.58%)
White (27.26%)
Two or more races (1.7%)
Native Hawaiian or Pacific Islander (0.33%)
Other race (0.12%)
Race | Population | Percentage (of total) |
|---|---|---|
| Native American | 1,701 | 70.58% |
| White | 657 | 27.26% |
| Two or more races | 41 | 1.7% |
| Native Hawaiian or Pacific Islander | 8 | 0.33% |
| Other race | 3 | 0.12% |
Married
Widowed
Divorced
Separated
Never Married
Ziebach County's average per capita income is $37,629. Household income levels show a median of $47,333. The poverty rate stands at 38.22%.
Name | Median | Mean |
|---|---|---|
| Married Families | $102,750 | - |
| Households | $47,333 | $76,468 |
| Families | $46,719 | $82,036 |
| Non Families | $41,607 | $46,856 |
Average Income
Median Household Income
Poverty Rate