Market insights · Montana
Granite County, MT: growth, migration and housing
Granite County has 3,658 residents, up 10.6% since 2020 (+0.5% in the last year). In 2022–2023, 157 households moved in and 88 moved out (+69 net), bringing in a net $5.6M of income. Median household income is $59,265, the median home $352,700 and median rent $675 a month.
In Montana: 8th of 56 counties for 5-year population growth · 1st of 46 counties for net in-migration (per resident) · 36th of 56 counties for median household income · 15th of 56 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Granite County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Missoula County, MT | 31 | $2.3M |
Where leavers went
Top counties by households leaving Granite County, 2022–2023 (IRS).
The IRS publishes no county-level flows for Granite County (it suppresses flows of fewer than 20 households).
BizyFi in Granite 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 Montana 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.