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Market insights · Missouri

Clay County, MO: growth, migration and housing

Clay County has 265,032 residents, up 4.3% since 2020 (+0.9% in the last year). In 2022–2023, 8,789 households moved in and 8,194 moved out (+595 net), bringing in a net $4.8M of income. Median household income is $88,468, the median home $275,600 and median rent $1,243 a month.

Population (2025)265,032
5-year growth+4.3%
1-year growth+0.9%
Net households moving in+595
Per 1,000 residents+2.2
Net income moving in+$4.8M
Median household income$88,468
Median home value$275,600
Median rent$1,243/mo
Rent as share of income17%

In Missouri: 22nd of 115 counties for 5-year population growth · 34th of 115 counties for net in-migration (per resident) · 4th of 115 counties for median household income · 6th of 115 counties for median home value.

Where new residents came from

Top counties by households (tax returns) moving to Clay County, 2022–2023 (IRS).

FromHouseholds (tax returns)Their income (AGI)
Jackson County, MO2,250$117.8M
Platte County, MO1,559$104.6M
Johnson County, KS537$38.2M
Wyandotte County, KS275$13.1M
Ray County, MO235$12.1M
Clinton County, MO175$9.5M
Buchanan County, MO135$7.7M
Cass County, MO107$6.6M

Where leavers went

Top counties by households leaving Clay County, 2022–2023 (IRS).

ToHouseholds (tax returns)Their income (AGI)
Jackson County, MO2,011$106.8M
Platte County, MO1,450$93.9M
Johnson County, KS561$41.7M
Ray County, MO245$14.2M
Clinton County, MO222$17.7M
Wyandotte County, KS218$9.6M
Cass County, MO128$7.3M
Buchanan County, MO106$6.9M

BizyFi in Clay County

Fewer than 3 companies in the BizyFi directory are based here. Search them on the company map (company names with a free account), or browse Missouri companies.

← All Missouri counties · National rankings

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.