Brookings County's estimated 2026 population is 37,253 with a growth rate of 1.21% in the past year according to the most recent United States census data. Brookings County is the 4th largest county in South Dakota. The 2010 population was 32,003 and has seen a growth of 16.4% since that time.
Data after 2023 is projected based on recent change
The racial composition of Brookings County includes 88.72% White, 3.4% Asian, and smaller percentages for other race, Native American, Black or African American and multiracial populations.
White (88.72%)
Two or more races (3.77%)
Asian (3.4%)
Other race (1.63%)
Native American (1.29%)
Black or African American (1.19%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 31,023 | 88.72% |
| Two or more races | 1,317 | 3.77% |
| Asian | 1,190 | 3.4% |
| Other race | 571 | 1.63% |
| Native American | 450 | 1.29% |
| Black or African American | 417 | 1.19% |
Married
Widowed
Divorced
Separated
Never Married
Brookings County's average per capita income is $48,819. Household income levels show a median of $67,341. The poverty rate stands at 12.82%.
Name | Median | Mean |
|---|---|---|
| Married Families | $110,022 | - |
| Families | $104,828 | $116,158 |
| Households | $67,341 | $87,946 |
| Non Families | $46,572 | $55,528 |
Average Income
Median Household Income
Poverty Rate