Ada County is located in the southwestern part of Idaho, United States. As of the 2020 census, the county had a population of 494,967, which by 2025 was estimated to have risen to 546,141. Ada County is by far the state's most populous county; it is home to 26.8% of the state's population. The county seat and largest city is Boise, which is also the state capital. Ada County is included in the Boise metropolitan area. The Ada County Highway District has jurisdiction over all the local county and city streets, except for private roads and state roads. In the interior Pacific Northwest east of the Cascade Range, Ada County ranks second in population, behind Spokane County, Washington. Collected from Wikipedia.
Areas Located Within , 
Charts for Ada County, ID
   Unemployment Rate in Ada County, ID2026-06-01
   Estimate of Median Household Income for Ada County, ID2024-01-01
   Housing Inventory: Median Listing Price in Ada County, ID2026-08-01
   Market Hotness: Median Days on Market in Ada County, ID2026-08-01
   All-Transactions House Price Index for Ada County, ID2025-01-01
   Resident Population in Ada County, ID2025-01-01
   Housing Inventory: Active Listing Count in Ada County, ID2026-08-01
   Housing Inventory: Median Listing Price per Square Feet in Ada County, ID2026-07-01
   Estimated Mean Real Household Wages Adjusted by Cost of Living for Ada County, ID2023-01-01
   New Private Housing Structures Authorized by Building Permits for Ada County, ID2025-01-01
   Single-Parent Households with Children as a Percentage of Households with Children (5-year estimate) in Ada County, ID2024-01-01
   Homeownership Rate (5-year estimate) for Ada County, ID2024-01-01
   Housing Inventory: Average Listing Price in Ada County, ID2026-08-01
   Market Hotness: Median Listing Price in Ada County, ID2026-08-01
   Mean Commuting Time for Workers (5-year estimate) in Ada County, ID2024-01-01
   Real Gross Domestic Product: All Industries in Ada County, ID2024-01-01
   Market Hotness: Median Listing Price Versus the United States in Ada County, ID2026-06-01
   Gross Domestic Product: All Industries in Ada County, ID2024-01-01
   Population Estimate, Total, Hispanic or Latino (5-year estimate) in Ada County, ID2024-01-01
   Rate of Preventable Hospital Admissions (5-year estimate) in Ada County, ID (DISCONTINUED)2015-01-01
   Income Inequality in Ada County, ID2024-01-01
   Population Estimate, Total, Not Hispanic or Latino, Two or More Races, Two Races Excluding Some Other Race, and Three or More Races (5-year estimate) in Ada County, ID2024-01-01
   Population Estimate, Total, Not Hispanic or Latino, Two or More Races, Two Races Including Some Other Race (5-year estimate) in Ada County, ID2024-01-01
   90% Confidence Interval Upper Bound of Estimate of Percent of People Age 0-17 in Poverty for Ada County, ID2024-01-01
   Market Hotness: Nielsen Household Rank in Ada County, ID2024-07-01
   Combined Violent and Property Crime Offenses Known to Law Enforcement in Ada County, ID (DISCONTINUED)2021-01-01
   Premature Death Rate for Ada County, ID2020-01-01
   Bachelor's Degree or Higher (5-year estimate) in Ada County, ID2024-01-01
   Net County-to-County Migration Flow (5-year estimate) for Ada County, ID (DISCONTINUED)2020-01-01
   High School Graduate or Higher (5-year estimate) in Ada County, ID2024-01-01
   Percent of Population Below the Poverty Level (5-year estimate) in Ada County, ID2024-01-01
   90% Confidence Interval Lower Bound of Estimate of Percent of People Age 0-17 in Poverty for Ada County, ID2024-01-01
   90% Confidence Interval Upper Bound of Estimate of People Age 0-17 in Poverty for Ada County, ID2024-01-01
   90% Confidence Interval Lower Bound of Estimate of Related Children Age 5-17 in Families in Poverty for Ada County, ID2024-01-01
   90% Confidence Interval Lower Bound of Estimate of Median Household Income for Ada County, ID2024-01-01
   Housing Inventory: Price Reduced Count Month-Over-Month in Ada County, ID2026-05-01
   90% Confidence Interval Lower Bound of Estimate of Percent of Related Children Age 5-17 in Families in Poverty for Ada County, ID2024-01-01
   SNAP Benefits Recipients in Ada County, ID2023-01-01
   Age-Adjusted Premature Death Rate for Ada County, ID2020-01-01
   Burdened Households (5-year estimate) in Ada County, ID2024-01-01
News and research for Ada County, ID
US Bureau of Labor Statistics (60) US Congressional Budget Office (16) US Census Bureau (14) Board of Governors of the Federal Reserve System (3) Federal Reserve Bank of New York (17) Federal Reserve Bank of Philadelphia (8) US Employment and Training Administration (11) The World Bank (71)
…..comments widget will be down here.