Market insights · Idaho
Lewis County, ID: growth, migration and housing
Lewis County has 3,704 residents, up 4.8% since 2020 (-0.2% in the last year). In 2022–2023, 128 households moved in and 162 moved out (-34 net), while a net $0.5M of income left. Median household income is $51,615, the median home $225,300 and median rent $737 a month.
In Idaho: 37th of 44 counties for 5-year population growth · 43rd of 43 counties for net in-migration (per resident) · 44th of 44 counties for median household income · 41st of 44 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Lewis County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Idaho County, ID | 35 | $1.6M |
| Nez Perce County, ID | 31 | $2.1M |
Where leavers went
Top counties by households leaving Lewis County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Idaho County, ID | 51 | $2.0M |
| Nez Perce County, ID | 40 | $2.2M |
BizyFi in Lewis 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.