Grant County's estimated 2025 population is 7,687 with a growth rate of 0.88% in the past year according to the most recent United States census data. Grant County is the 23rd largest county in South Dakota. The 2010 population was 7,351 and has seen a growth of 4.57% since that time.
Data after 2023 is projected based on recent change
The racial composition of Grant County includes 91.09% White, 3.19% other race, and smaller percentages for Two or more races, Native American, Asian, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.
White
Other race
Two or more races
Native American
Asian
Black or African American
Native Hawaiian or Pacific Islander
Race | Population | Percentage (of total) |
|---|---|---|
| White | 6,872 | 91.09% |
| Other race | 241 | 3.19% |
| Two or more races | 184 | 2.44% |
| Native American | 156 | 2.07% |
| Asian | 47 | 0.62% |
| Black or African American | 44 | 0.58% |
| Native Hawaiian or Pacific Islander | 0 | 0% |
Married
Widowed
Divorced
Separated
Never Married
Grant County's average per capita income is $43,564. Household income levels show a median of $73,818. The poverty rate stands at 11.2%.
Name | Median | Mean |
|---|---|---|
| Married Families | $95,750 | - |
| Families | $94,097 | $115,211 |
| Households | $73,818 | $92,573 |
| Non Families | $31,071 | $43,324 |
Average Income
Median Household Income
Poverty Rate