Community Profiles
Brookings County, SD
36,502
Population
30.5
Median Age
32
Diversity Index
Population Demographics
As of 2025 the population of Brookings County, SD is 36,502. The population is expected to grow to 38,107 by 2030 – a growth rate of 0.86%.
The median age of Brookings County, SD residents is 31.
The diversity index of Brookings County, SD is 32.4, meaning that there is a 32% chance that any two people selected out of 100 residents will be of different race or ethnicity from one another.
$89,082
Average Household Income
$71,513
Average Disposable Income
16,069
Housing Units
$324,891
Average Home Value
Housing and Income
The average household income in Brookings County, SD is $89,082 and projected to be $97,263 in 2030. Per capita income is $34,970, projected to be $38,600 in 2030. 2.25% of households – 823 – have an income of $200,000 or higher. Average net worth is $668,820 and the average disposable income is $71,513.
There are 16,069 housing units in Brookings County, SD; 8,489 are owner-occupied, 5,710 are rented, and 1,870 are vacant. The average home value is $324,891, with 2,732 homes built in 2010 or later, and 2,190 built in 1939 or earlier.
16,980
Workforce
3.00%
Unemployment Rate
1,340
Veteran Population
10,048
Bachelor's Degree or Higher
Business and Workforce
There are 1,467 businesses in Brookings County, SD, employing 17,446 workers and pulling from a labor force of 18,677 age 16 and above. 1,408 workers commute into Brookings County, SD from outside the county or state. Key industries for the area include:
16,980 residents both live and work in/around Brookings County, SD. The average travel time is 13.8 minutes. 8.14% people have a commute of less than 5 minutes while 0.65% commute 90 minutes or more each way. Of commuters, 14,022 drive alone, 1,612 carpool, and 103 take public transportation. 901 use other modes of transport such as motorcycle, bicycle, walking, etc. 2,039 residents work from home.
4,566 members of the workforce hold a high school diploma or GED. 2,423 have associates degrees, 6,673 have bachelor’s degrees, and 3,375 hold a graduate or professional degree.