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Market insights · Iowa

Fayette County, IA: growth, migration and housing

Fayette County has 19,047 residents, down 2.1% since 2020 (-0.3% in the last year). In 2022–2023, 399 households moved in and 429 moved out (-30 net), bringing in a net $0.1M of income. Median household income is $60,165, the median home $136,800 and median rent $881 a month.

Population (2025)19,047
5-year growth-2.1%
1-year growth-0.3%
Net households moving in-30
Per 1,000 residents-1.6
Net income moving in+$0.1M
Median household income$60,165
Median home value$136,800
Median rent$881/mo
Rent as share of income18%

In Iowa: 74th of 99 counties for 5-year population growth · 47th of 99 counties for net in-migration (per resident) · 93rd of 99 counties for median household income · 75th of 99 counties for median home value.

Where new residents came from

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

FromHouseholds (tax returns)Their income (AGI)
Buchanan County, IA62$2.9M
Black Hawk County, IA33$1.4M
Winneshiek County, IA33$1.6M
Bremer County, IA32$1.9M
Clayton County, IA32$2.0M

Where leavers went

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

ToHouseholds (tax returns)Their income (AGI)
Buchanan County, IA54$2.1M
Black Hawk County, IA53$1.9M
Clayton County, IA32$1.8M
Bremer County, IA25$1.2M
Winneshiek County, IA23$1.3M
Linn County, IA21$0.7M

BizyFi in Fayette 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.