Market insights · Montana
Hill County, MT: growth, migration and housing
Hill County has 16,167 residents, down 0.5% since 2020 (+0.3% in the last year). In 2022–2023, 342 households moved in and 338 moved out (+4 net), while a net $1.3M of income left. Median household income is $52,798, the median home $202,600 and median rent $776 a month.
In Montana: 39th of 56 counties for 5-year population growth · 29th of 46 counties for net in-migration (per resident) · 50th of 56 counties for median household income · 38th of 56 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Hill County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Cascade County, MT | 37 | $1.2M |
| Blaine County, MT | 32 | $0.8M |
Where leavers went
Top counties by households leaving Hill County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Cascade County, MT | 46 | $2.5M |
| Chouteau County, MT | 21 | $0.8M |
| Yellowstone County, MT | 21 | $1.2M |
| Blaine County, MT | 20 | $0.8M |
BizyFi in Hill 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.