BizyFi Apply

Market insights · Tennessee

Decatur County, TN: growth, migration and housing

Decatur County has 11,820 residents, up 3.4% since 2020 (+0.7% in the last year). In 2022–2023, 267 households moved in and 237 moved out (+30 net), bringing in a net $1.1M of income. Median household income is $45,375, the median home $139,600 and median rent $757 a month.

Population (2025)11,820
5-year growth+3.4%
1-year growth+0.7%
Net households moving in+30
Per 1,000 residents+2.5
Net income moving in+$1.1M
Median household income$45,375
Median home value$139,600
Median rent$757/mo
Rent as share of income20%

In Tennessee: 69th of 95 counties for 5-year population growth · 74th of 95 counties for net in-migration (per resident) · 91st of 95 counties for median household income · 87th of 95 counties for median home value.

Where new residents came from

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

FromHouseholds (tax returns)Their income (AGI)
Henderson County, TN57$1.9M

Where leavers went

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

ToHouseholds (tax returns)Their income (AGI)
Henderson County, TN64$2.7M

BizyFi in Decatur 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 Tennessee companies.

← All Tennessee 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.