Market insights · Idaho
Franklin County, ID: growth, migration and housing
Franklin County has 15,889 residents, up 11.2% since 2020 (+1.4% in the last year). In 2022–2023, 317 households moved in and 335 moved out (-18 net), bringing in a net $5.4M of income. Median household income is $71,950, the median home $372,600 and median rent $894 a month.
In Idaho: 11th of 44 counties for 5-year population growth · 32nd of 43 counties for net in-migration (per resident) · 15th of 44 counties for median household income · 15th of 44 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Franklin County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Cache County, UT | 131 | $6.9M |
Where leavers went
Top counties by households leaving Franklin County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Cache County, UT | 116 | $5.0M |
| Bannock County, ID | 21 | $0.9M |
| Salt Lake County, UT | 20 | $1.1M |
BizyFi in Franklin 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 Idaho 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.