Market insights · Iowa
Lyon County, IA: growth, migration and housing
Lyon County has 12,354 residents, up 3.6% since 2020 (-0.4% in the last year). In 2022–2023, 189 households moved in and 227 moved out (-38 net), while a net $2.0M of income left. Median household income is $76,746, the median home $230,000 and median rent $843 a month.
In Iowa: 6th of 99 counties for 5-year population growth · 67th of 99 counties for net in-migration (per resident) · 24th of 99 counties for median household income · 13th of 99 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Lyon County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Sioux County, IA | 37 | $2.3M |
| Minnehaha County, SD | 27 | $1.4M |
Where leavers went
Top counties by households leaving Lyon County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Sioux County, IA | 51 | $2.9M |
| Minnehaha County, SD | 32 | $1.6M |
| Lincoln County, SD | 24 | $1.0M |
BizyFi in Lyon County
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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.