Brookings County's estimated 2026 population is 38,456 with a growth rate of 2.18% 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 20.16% since that time.
Data after 2023 is projected based on recent change
Overall: 28 years
Female: 28 years
Male: 28 years
There are 27,898 adults, (4,736 of whom are seniors) in Brookings County.
Female: 17,358 (49.1%)
Male: 17,995 (50.9%)
The racial composition of Brookings County includes 87.87% White, 3.28% Asian, and smaller percentages for other race, Native American, Black or African American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 31,063 | 87.87% |
| Two or more races | 1,572 | 4.45% |
| Asian | 1,160 | 3.28% |
| Other race | 697 | 1.97% |
| Native American | 460 | 1.3% |
| Black or African American | 401 | 1.13% |
Brookings County's average per capita income is $51,013. Household income levels show a median of $70,064. The poverty rate stands at 13.16%.
Name | Median | Mean |
|---|---|---|
| Married Families | $112,284 | - |
| Families | $106,433 | $119,323 |
| Households | $70,064 | $89,400 |
| Non Families | $47,037 | $56,636 |
Average Income
Median Household Income
Poverty Rate