Market insights · South Dakota
Brown County, SD: growth, migration and housing
Brown County has 37,561 residents, down 1.8% since 2020 (-0.2% in the last year). In 2022–2023, 841 households moved in and 965 moved out (-124 net), while a net $8.5M of income left. Median household income is $70,898, the median home $221,100 and median rent $777 a month.
In South Dakota: 55th of 66 counties for 5-year population growth · 43rd of 62 counties for net in-migration (per resident) · 36th of 66 counties for median household income · 18th of 66 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Brown County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Spink County, SD | 43 | $3.4M |
| Edmunds County, SD | 42 | $2.5M |
| Minnehaha County, SD | 37 | $1.6M |
| Codington County, SD | 25 | $1.0M |
| Day County, SD | 22 | $1.2M |
| Beadle County, SD | 21 | $1.1M |
Where leavers went
Top counties by households leaving Brown County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Minnehaha County, SD | 89 | $5.1M |
| Lincoln County, SD | 39 | $2.6M |
| Codington County, SD | 36 | $1.5M |
| Spink County, SD | 32 | $1.3M |
| Hennepin County, MN | 22 | $1.7M |
| Cass County, ND | 20 | $1.4M |
BizyFi in Brown County
Fewer than 3 companies in the BizyFi directory are based here. Search them on the company map (company names with a free account), or browse South Dakota companies.
← All South Dakota counties · National rankings
Sources: U.S. Census Bureau population estimates (vintage 2025), American Community Survey 5-year (2024), and IRS Statistics of Income county-to-county migration data (2022–2023). Migration counts are tax returns (roughly households) moving between U.S. counties; the IRS suppresses very small flows. Growth rates, per-1,000 figures, rent share and state ranks are BizyFi calculations. Data updated 2026-10-17. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.