Ada County, Idaho
Ada County, Idaho, had an estimated population of 546,141 in 2025 across 2,725 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
- 546,141
- 2025 estimate
- Area
- 2,725 km²
- Density
- 200
- per km²
- Median income
- $91,502
- household, ACS 2024
- Median age
- 38.4
- years, ACS 2024
How Idaho's counties spread
Amenities & Infrastructure
| Indicator | Value | In Idaho | In the US |
|---|---|---|---|
| Households with Broadband2024 | 94.7% | 5 / 44 | 89 / 3,144 |
| Median Gross Rent2024 | $1,577 | 1 / 44 | 203 / 3,137 |
| Median Home Value2024 | $512,300 | 5 / 44 | 132 / 3,139 |
| Owner-Occupied Homes2024 | 70.8% | 34 / 44 | 2,147 / 3,144 |
| Vacant Homes2024 | 4.2% | 42 / 44 | 3,056 / 3,144 |
Demography
| Indicator | Value | In Idaho | In the US |
|---|---|---|---|
| Aged 65 and Over2024 | 16.2% | 29 / 44 | 2,578 / 3,144 |
| American Indian & Alaska Native2024 | 0.3% | 30 / 44 | 922 / 3,144 |
| Asian, non-Hispanic2024 | 2.7% | 2 / 44 | 383 / 3,144 |
| Average Household Size2024people | 2.5 | 30 / 44 | 1,141 / 3,144 |
| Black, non-Hispanic2024 | 1.3% | 2 / 44 | 1,837 / 3,144 |
| Foreign-Born2024 | 6.2% | 15 / 44 | 765 / 3,144 |
| Hispanic or Latino2024 | 9.8% | 22 / 44 | 901 / 3,144 |
| Median Age2024years | 38.4 | 26 / 44 | 2,418 / 3,144 |
| Sex Ratio2024per 1,000 males | 985 | 16 / 44 | 1,914 / 3,144 |
| Speak a Language Other Than English2024 | 9.3% | 21 / 44 | 992 / 3,144 |
| Under 182024 | 22.0% | 28 / 44 | 1,479 / 3,144 |
| Veterans2024 | 7.8% | 24 / 44 | 1,179 / 3,144 |
| White, non-Hispanic2024 | 80.9% | 25 / 44 | 1,530 / 3,144 |
Economy
| Indicator | Value | In Idaho | In the US |
|---|---|---|---|
| Below Poverty Line2024 | 8.3% | 39 / 44 | 2,716 / 3,144 |
| Households on SNAP2024 | 5.1% | 34 / 44 | 2,838 / 3,144 |
| Income Inequality2024index | 0.451 | 11 / 44 | 1,360 / 3,144 |
| Median Household Income2024 | $91,502 | 3 / 44 | 276 / 3,143 |
| Per Capita Income2024 | $49,757 | 3 / 44 | 221 / 3,144 |
| Unemployment Rate2024 | 3.1% | 26 / 44 | 2,391 / 3,144 |
Education
| Indicator | Value | In Idaho | In the US |
|---|---|---|---|
| Bachelor's Degree or Higher2024 | 44.6% | 3 / 44 | 176 / 3,144 |
| High School or Higher2024 | 95.2% | 6 / 44 | 212 / 3,144 |
Health Coverage
| Indicator | Value | In Idaho | In the US |
|---|---|---|---|
| No Health Insurance2024 | 6.4% | 42 / 44 | 1,999 / 3,144 |
| With a Disability2024 | 11.8% | 39 / 44 | 2,717 / 3,144 |
Population & Density
| Indicator | Value | In Idaho | In the US |
|---|---|---|---|
| Population2025 | 546,141 | 1 / 44 | 134 / 3,144 |
| Population Density2025/km² | 200 | 1 / 44 | 275 / 3,144 |
Work & Commute
| Indicator | Value | In Idaho | In the US |
|---|---|---|---|
| Commute by Public Transit2024 | 0.3% | 15 / 44 | 1,112 / 3,144 |
| Households with No Vehicle2024 | 3.8% | 16 / 44 | 2,416 / 3,144 |
| Mean Commute Time2024minutes | 21.2 | 26 / 44 | 2,223 / 3,143 |
| Work from Home2024 | 18.5% | 4 / 44 | 187 / 3,144 |
Other counties of Idaho
- 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
- Lewis 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 Ada 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.