Market insights · South Dakota
Grant County, SD: growth, migration and housing
Grant County has 7,534 residents, down 0.0% since 2020 (-1.0% in the last year). In 2022–2023, 142 households moved in and 157 moved out (-15 net), while a net $4.5M of income left. Median household income is $75,028, the median home $171,000 and median rent $763 a month.
In South Dakota: 41st of 66 counties for 5-year population growth · 34th of 62 counties for net in-migration (per resident) · 21st of 66 counties for median household income · 30th of 66 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Grant County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Roberts County, SD | 22 | $0.7M |
| Codington County, SD | 21 | $1.1M |
Where leavers went
Top counties by households leaving Grant County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Codington County, SD | 30 | $2.2M |
BizyFi in Grant County
No companies in the BizyFi directory are based here yet. Search them on the company map (company names with a free account), or browse South Dakota companies.
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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.