Market insights · Missouri
Platte County, MO: growth, migration and housing
Platte County has 114,400 residents, up 6.7% since 2020 (+1.2% in the last year). In 2022–2023, 5,129 households moved in and 4,808 moved out (+321 net), while a net $14.9M of income left. Median household income is $96,227, the median home $345,100 and median rent $1,334 a month.
In Missouri: 11th of 115 counties for 5-year population growth · 27th of 115 counties for net in-migration (per resident) · 2nd of 115 counties for median household income · 1st of 115 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Platte County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Clay County, MO | 1,450 | $93.9M |
| Jackson County, MO | 816 | $54.8M |
| Johnson County, KS | 356 | $27.7M |
| Wyandotte County, KS | 177 | $11.2M |
| Buchanan County, MO | 137 | $7.4M |
| Leavenworth County, KS | 84 | $5.9M |
| Greene County, MO | 41 | $2.4M |
| Clinton County, MO | 40 | $1.9M |
Where leavers went
Top counties by households leaving Platte County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Clay County, MO | 1,559 | $104.6M |
| Jackson County, MO | 701 | $47.0M |
| Johnson County, KS | 335 | $27.0M |
| Wyandotte County, KS | 127 | $6.7M |
| Leavenworth County, KS | 97 | $6.4M |
| Buchanan County, MO | 95 | $6.4M |
| Maricopa County, AZ | 45 | $4.9M |
| Cass County, MO | 38 | $2.8M |
BizyFi in Platte 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.