Lewis County, Idaho
Lewis County, Idaho, had an estimated population of 3,704 in 2025 across 1,240 km². The figures below come from the US Census Bureau's population estimates and the American Community Survey, each shown with its own vintage and its rank among Idaho's counties and nationally.
- Population
- 3,704
- 2025 estimate
- Area
- 1,240 km²
- Density
- 3
- per km²
- Median income
- $51,615
- household, ACS 2024
- Median age
- 49
- years, ACS 2024
How Idaho's counties spread
Amenities & Infrastructure
| Indicator | Value | In Idaho | In the US |
|---|---|---|---|
| Households with Broadband2024 | 81.9% | 42 / 44 | 2,567 / 3,144 |
| Median Gross Rent2024 | $737 | 41 / 44 | 2,545 / 3,137 |
| Median Home Value2024 | $225,300 | 41 / 44 | 1,127 / 3,139 |
| Owner-Occupied Homes2024 | 76.4% | 20 / 44 | 1,262 / 3,144 |
| Vacant Homes2024 | 13.8% | 19 / 44 | 1,588 / 3,144 |
Demography
| Indicator | Value | In Idaho | In the US |
|---|---|---|---|
| Aged 65 and Over2024 | 28.3% | 6 / 44 | 207 / 3,144 |
| American Indian & Alaska Native2024 | 1.3% | 10 / 44 | 405 / 3,144 |
| Asian, non-Hispanic2024 | 1.0% | 10 / 44 | 1,011 / 3,144 |
| Average Household Size2024people | 2.3 | 41 / 44 | 2,452 / 3,144 |
| Black, non-Hispanic2024 | 1.1% | 3 / 44 | 1,939 / 3,144 |
| Foreign-Born2024 | 1.2% | 40 / 44 | 2,513 / 3,144 |
| Hispanic or Latino2024 | 4.3% | 38 / 44 | 1,753 / 3,144 |
| Median Age2024years | 49 | 7 / 44 | 278 / 3,144 |
| Sex Ratio2024per 1,000 males | 990 | 14 / 44 | 1,819 / 3,144 |
| Speak a Language Other Than English2024 | 3.8% | 32 / 44 | 2,032 / 3,144 |
| Under 182024 | 21.9% | 30 / 44 | 1,526 / 3,144 |
| Veterans2024 | 10.8% | 6 / 44 | 258 / 3,144 |
| White, non-Hispanic2024 | 81.7% | 23 / 44 | 1,483 / 3,144 |
Economy
| Indicator | Value | In Idaho | In the US |
|---|---|---|---|
| Below Poverty Line2024 | 15.3% | 6 / 44 | 1,133 / 3,144 |
| Households on SNAP2024 | 9.8% | 12 / 44 | 1,963 / 3,144 |
| Income Inequality2024index | 0.471 | 8 / 44 | 754 / 3,144 |
| Median Household Income2024 | $51,615 | 44 / 44 | 2,684 / 3,143 |
| Per Capita Income2024 | $31,902 | 29 / 44 | 2,118 / 3,144 |
| Unemployment Rate2024 | 2.4% | 33 / 44 | 2,721 / 3,144 |
Education
| Indicator | Value | In Idaho | In the US |
|---|---|---|---|
| Bachelor's Degree or Higher2024 | 21.3% | 28 / 44 | 1,703 / 3,144 |
| High School or Higher2024 | 91.4% | 20 / 44 | 1,235 / 3,144 |
Health Coverage
| Indicator | Value | In Idaho | In the US |
|---|---|---|---|
| No Health Insurance2024 | 11.1% | 18 / 44 | 822 / 3,144 |
| With a Disability2024 | 24.0% | 2 / 44 | 175 / 3,144 |
Population & Density
| Indicator | Value | In Idaho | In the US |
|---|---|---|---|
| Population2025 | 3,704 | 41 / 44 | 2,904 / 3,144 |
| Population Density2025/km² | 3 | 25 / 44 | 2,600 / 3,144 |
Work & Commute
| Indicator | Value | In Idaho | In the US |
|---|---|---|---|
| Commute by Public Transit2024 | 0.0% | 29 / 44 | 2,161 / 3,144 |
| Households with No Vehicle2024 | 3.4% | 21 / 44 | 2,577 / 3,144 |
| Mean Commute Time2024minutes | 21.4 | 25 / 44 | 2,183 / 3,143 |
| Work from Home2024 | 12.6% | 14 / 44 | 682 / 3,144 |
Other counties of Idaho
- Ada County
- Adams County
- Bannock County
- Bear Lake County
- Benewah County
- Bingham County
- Blaine County
- Boise County
- Bonner County
- Bonneville County
- Boundary County
- Butte County
- Camas County
- Canyon County
- Caribou County
- Cassia County
- Clark County
- Clearwater County
- Custer County
- Elmore County
- Franklin County
- Fremont County
- Gem County
- Gooding County
- Idaho County
- Jefferson County
- Jerome County
- Kootenai County
- Latah County
- Lemhi County
- Lincoln County
- Madison County
- Minidoka County
- Nez Perce County
- Oneida County
- Owyhee County
- Payette County
- Power County
- Shoshone County
- Teton County
- Twin Falls County
- Valley County
- Washington County
Compare Lewis County against every other county on a map, add layers and run a scatter — open the atlas. Sources and vintages for every figure on this page are listed under datasets, or browse all 3,144 counties.