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Market insights · Idaho

Boise County, ID: growth, migration and housing

Boise County has 8,545 residents, up 11.5% since 2020 (+0.5% in the last year). In 2022–2023, 346 households moved in and 365 moved out (-19 net), bringing in a net $13.3M of income. Median household income is $78,774, the median home $476,100 and median rent $850 a month.

Population (2025)8,545
5-year growth+11.5%
1-year growth+0.5%
Net households moving in-19
Per 1,000 residents-2.2
Net income moving in+$13.3M
Median household income$78,774
Median home value$476,100
Median rent$850/mo
Rent as share of income13%

In Idaho: 9th of 44 counties for 5-year population growth · 34th of 43 counties for net in-migration (per resident) · 7th of 44 counties for median household income · 7th of 44 counties for median home value.

Where new residents came from

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

FromHouseholds (tax returns)Their income (AGI)
Ada County, ID143$19.6M
Canyon County, ID31$2.3M

Where leavers went

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

ToHouseholds (tax returns)Their income (AGI)
Ada County, ID146$9.2M
Canyon County, ID43$2.5M

BizyFi in Boise 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.