Market insights · Tennessee
Union County, TN: growth, migration and housing
Union County has 21,450 residents, up 8.1% since 2020 (+1.5% in the last year). In 2022–2023, 638 households moved in and 569 moved out (+69 net), bringing in a net $12.0M of income. Median household income is $62,727, the median home $204,000 and median rent $847 a month.
In Tennessee: 22nd of 95 counties for 5-year population growth · 68th of 95 counties for net in-migration (per resident) · 34th of 95 counties for median household income · 49th of 95 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Union County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Knox County, TN | 267 | $15.9M |
| Anderson County, TN | 39 | $2.0M |
| Claiborne County, TN | 33 | $1.7M |
| Grainger County, TN | 20 | $0.9M |
Where leavers went
Top counties by households leaving Union County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Knox County, TN | 226 | $10.0M |
| Grainger County, TN | 49 | $3.2M |
| Claiborne County, TN | 46 | $2.2M |
| Anderson County, TN | 33 | $1.4M |
BizyFi in Union 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.