Ada County, Idaho
Ada County, Idaho · ZIP 83616, 83634, 83641
- Census data · ACS 2019-2023
- 535,799 (2024 estimate)Population
- 196,700Households
- $88,907Median household income
- $476,000Median home value
- 8Towns with a page
- 19ZIP codes
Ada County in numbersOfficial sources, refreshed yearly
| Census | Population |
|---|---|
| 2000 | 300,904 |
| 2010 | 392,365 |
| 2020 | 494,967 |
As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.
Sources: Census 2000 Summary File 1: total population, county level, state 16, retrieved November 14, 2026; Census 2010 Summary File 1: total population, county level, state 16, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, county level, state 16, retrieved November 14, 2026.
Median household income $88,907 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.
Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, county level, state 16, retrieved November 14, 2026.
- Owner occupied
- 140,354 units
- Renter occupied
- 56,346 units
- Vacancy rate
- 4.1%
Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.
Source: American Community Survey 5-year data profile 2019–2023, county level, state 16, retrieved November 14, 2026.
243,004 employees in 17,028 establishments with payroll in 2023, all sectors; employers themselves are not named in the source. County Business Patterns counts are published with noise.
Source: County Business Patterns 2023: employment by sector, county level, state 16, retrieved November 14, 2026.
| Measure | Ada County | Idaho |
|---|---|---|
| Population | 508,052 | 1,893,296 |
| Median household income | $88,907 | $74,636 |
| Median age | 38.3 | 37.1 |
| Median home value | $476,000 | $376,000 |
| Bachelor’s degree or higher | 43.9% | 31.2% |
| Foreign-born residents | 6.0% | 5.7% |
| Owner-occupied homes | 71.4% | 72.4% |
| Mean commute to work | 21.2 minutes | 21.6 minutes |
Source: American Community Survey 5-year data profile 2019–2023, county level, state 16, retrieved November 14, 2026.
Townships, towns and villages in Ada County8 with a page · sort by any column
| Type | |||
|---|---|---|---|
| Boise City | City | 237,963 | 86.1 sq mi |
| Meridian | City | 139,740 | 37.6 sq mi |
| Eagle | City | 33,451 | 46.0 sq mi |
| Kuna | City | 29,127 | 26.1 sq mi |
| Star | City | 18,208 | 11.8 sq mi |
| Garden City | City | 12,936 | 4.08 sq mi |
| Hidden Springs | Census designated place | 3,490 | 2.63 sq mi |
| Avimor | Census designated place | 1,289 | 0.36 sq mi |
Populations: Census Population Estimates, Vintage 2024: subcounty totals, state 16 (2024). Land areas: Census Gazetteer 2025: counties. A dash means the figure is not in the cited file.
County officialsFrom public records
No county official is published yet. Names appear once a researcher drafts them from the county’s own site and a second person approves; office contacts only, never personal details.
Across Ada County
No job is posted in Ada County’s towns yet. Employers post from their business dashboard; public job banks are added once their terms are recorded.
No upcoming event is listed in Ada County's towns yet. Members and businesses add events from any town page.
Nothing has been posted in Ada County’s towns yet. Join a town to start its feed.
Neighboring counties
Neighboring counties
- Boise CountyPopulation 8,581 (2024 estimate)
- Canyon CountyPopulation 266,892 (2024 estimate)
- Elmore CountyPopulation 29,729 (2024 estimate)
- Gem CountyPopulation 21,857 (2024 estimate)
- Owyhee CountyPopulation 12,748 (2024 estimate)
Sources: Census county adjacency file 2024, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 16, retrieved November 14, 2026.