Market insights · Idaho
Blaine County, ID: growth, migration and housing
Blaine County has 25,517 residents, up 4.8% since 2020 (-0.7% in the last year). In 2022–2023, 660 households moved in and 746 moved out (-86 net), bringing in a net $25.4M of income. Median household income is $92,566, the median home $735,300 and median rent $1,338 a month.
In Idaho: 36th of 44 counties for 5-year population growth · 35th of 43 counties for net in-migration (per resident) · 2nd of 44 counties for median household income · 1st of 44 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Blaine County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Ada County, ID | 61 | $5.2M |
| King County, WA | 37 | $22.8M |
| Twin Falls County, ID | 31 | $2.1M |
| Los Angeles County, CA | 22 | $5.6M |
Where leavers went
Top counties by households leaving Blaine County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Ada County, ID | 113 | $8.1M |
| Twin Falls County, ID | 54 | $3.3M |
| Lincoln County, ID | 28 | $1.4M |
| King County, WA | 24 | $3.6M |
BizyFi in Blaine County
Fewer than 3 companies in the BizyFi directory are based here. Search them on the company map (company names with a free account), or browse Idaho companies.
← All Idaho counties · National rankings
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.