Brown County, SD Demographics
Brown County, SD is the 4th most populous of 66 counties in South Dakota, with 38,301 residents across 1,713 square miles. That is about 22 people per square mile.
At the 2020 census
| Population | 38,301 |
|---|---|
| Land area | 1,713 sq mi |
| Density | 22 / sq mi |
Data: 2020 Census · American Community Survey 2024
How Brown County compares to the US
We're computing this county's comparison table — check back shortly. Population, land area, and density above are already exact.
Central Location: Brown County, SD
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around Brown County, SD — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Census tracts in Brown County, SD
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| Census Tract 9514 | 7,414 | 16.7 | 443 |
| Census Tract 9518 | 6,143 | 16.6 | 371 |
| Census Tract 9513 | 6,006 | 25.1 | 239 |
| Census Tract 9516 | 4,587 | 0.9 | 4,978 |
| Census Tract 9517 | 4,425 | 24.9 | 177 |
| Census Tract 9520 | 4,076 | 1,152.2 | 4 |
| Census Tract 9519 | 3,380 | 475.8 | 7 |
| Census Tract 9515 | 2,270 | 0.8 | 3,022 |
Related places
Other counties nearby
Nearest counties
Metro areas containing Brown County
About this page
This page shows demographics for a US county from the 2020 census and the American Community Survey: population, land area, density, urban share, and how the county compares to national averages for income, housing, age, and more.
Counties subdivide into census tracts, listed below with their populations. The drive-time and radius tables measure the population around the county's main population center.