Market insights · South Dakota
Lake County, SD: growth, migration and housing
Lake County has 10,993 residents, down 0.2% since 2020 (-0.5% in the last year). In 2022–2023, 335 households moved in and 349 moved out (-14 net), bringing in a net $0.8M of income. Median household income is $76,808, the median home $247,600 and median rent $947 a month.
In South Dakota: 47th of 66 counties for 5-year population growth · 26th of 62 counties for net in-migration (per resident) · 17th of 66 counties for median household income · 9th of 66 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Lake County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Minnehaha County, SD | 63 | $3.6M |
| Brookings County, SD | 28 | $1.6M |
| Lincoln County, SD | 25 | $3.5M |
Where leavers went
Top counties by households leaving Lake County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Minnehaha County, SD | 103 | $6.9M |
| Lincoln County, SD | 20 | $1.3M |
BizyFi in Lake 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.