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Market insights · Kentucky

Spencer County, KY: growth, migration and housing

Spencer County has 20,998 residents, up 7.7% since 2020 (+1.4% in the last year). In 2022–2023, 623 households moved in and 578 moved out (+45 net), bringing in a net $9.0M of income. Median household income is $102,618, the median home $330,000 and median rent $987 a month.

Population (2025)20,998
5-year growth+7.7%
1-year growth+1.4%
Net households moving in+45
Per 1,000 residents+2.1
Net income moving in+$9.0M
Median household income$102,618
Median home value$330,000
Median rent$987/mo
Rent as share of income12%

In Kentucky: 6th of 120 counties for 5-year population growth · 43rd of 120 counties for net in-migration (per resident) · 2nd of 120 counties for median household income · 2nd of 120 counties for median home value.

Where new residents came from

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

FromHouseholds (tax returns)Their income (AGI)
Jefferson County, KY247$19.6M
Bullitt County, KY80$6.0M
Shelby County, KY64$3.8M
Nelson County, KY24$1.5M

Where leavers went

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

ToHouseholds (tax returns)Their income (AGI)
Jefferson County, KY199$12.3M
Shelby County, KY73$4.6M
Bullitt County, KY68$4.0M
Nelson County, KY40$1.8M

BizyFi in Spencer County

No companies in the BizyFi directory are based here yet. Search them on the company map (company names with a free account), or browse Kentucky companies.

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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.