Market insights · Missouri
DeKalb County, MO: growth, migration and housing
DeKalb County has 9,795 residents, down 15.6% since 2020 (-0.9% in the last year). In 2022–2023, 286 households moved in and 316 moved out (-30 net), bringing in a net $0.5M of income. Median household income is $69,826, the median home $169,200 and median rent $817 a month.
In Missouri: 115th of 115 counties for 5-year population growth · 100th of 115 counties for net in-migration (per resident) · 22nd of 115 counties for median household income · 53rd of 115 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to DeKalb County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Clinton County, MO | 76 | $3.4M |
| Buchanan County, MO | 56 | $3.6M |
| Caldwell County, MO | 25 | $1.6M |
| Clay County, MO | 22 | $1.1M |
| Daviess County, MO | 21 | $0.8M |
Where leavers went
Top counties by households leaving DeKalb County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Buchanan County, MO | 73 | $3.4M |
| Clinton County, MO | 63 | $3.2M |
| Caldwell County, MO | 21 | $0.8M |
| Clay County, MO | 20 | $1.1M |
BizyFi in DeKalb 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.