Market insights · Missouri
Marion County, MO: growth, migration and housing
Marion County has 28,525 residents, up 0.2% since 2020 (+0.4% in the last year). In 2022–2023, 661 households moved in and 676 moved out (-15 net), while a net $3.5M of income left. Median household income is $62,903, the median home $162,000 and median rent $808 a month.
In Missouri: 81st of 115 counties for 5-year population growth · 68th of 115 counties for net in-migration (per resident) · 43rd of 115 counties for median household income · 65th of 115 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Marion County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Ralls County, MO | 133 | $7.4M |
| Adams County, IL | 81 | $5.1M |
| Lewis County, MO | 37 | $1.7M |
| Monroe County, MO | 34 | $1.3M |
| Pike County, MO | 24 | $0.8M |
| Boone County, MO | 21 | $0.9M |
Where leavers went
Top counties by households leaving Marion County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Ralls County, MO | 146 | $7.5M |
| Adams County, IL | 81 | $6.7M |
| Monroe County, MO | 34 | $1.0M |
| Lewis County, MO | 31 | $1.4M |
| Pike County, MO | 25 | $0.8M |
BizyFi in Marion 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.