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Market insights · Texas

Mills County, TX: growth, migration and housing

Mills County has 4,580 residents, up 3.0% since 2020 (-0.1% in the last year). In 2022–2023, 133 households moved in and 124 moved out (+9 net), bringing in a net $4.7M of income. Median household income is $67,620, the median home $223,700 and median rent $708 a month.

Population (2025)4,580
5-year growth+3.0%
1-year growth-0.1%
Net households moving in+9
Per 1,000 residents+2.0
Net income moving in+$4.7M
Median household income$67,620
Median home value$223,700
Median rent$708/mo
Rent as share of income13%

In Texas: 114th of 254 counties for 5-year population growth · 101st of 245 counties for net in-migration (per resident) · 103rd of 254 counties for median household income · 65th of 250 counties for median home value.

Where new residents came from

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

The IRS publishes no county-level flows for Mills County (it suppresses flows of fewer than 20 households).

Where leavers went

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

ToHouseholds (tax returns)Their income (AGI)
Brown County, TX29$1.5M

BizyFi in Mills 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.