State rank#1 of 44
Smallest county518,935 residentsAda County
Published county profile · Official data · FIPS 16001
Ada County, Idaho
County-level income, housing, jobs, education, health, and population with transparent statewide comparisons and source periods.
Population518,935
Household income$91,502
Unemployment3.3%
Life expectancy79.7 years
County overview
Living metrics at a glance
Ada County has 518,935 residents and ranks #1 by population among Idaho county equivalents. Median household income is $91,502. The annual-average unemployment rate is 3.3%. Its clearest relative strength is poor or fair health. Its county population is above the state county median. Every figure below stays at county scope.
Within Idaho
County population range
The marker places this county between the smallest and largest county populations in the state.
Relocation guide
Moving to Ada County: what to check
Data narrows the search; municipality, neighborhood, commute, schools, and current listings complete the decision.
Before moving
Before moving, compare municipalities inside Ada County, because county averages do not describe every neighborhood. Review current housing inventory, commute destinations, school districts, healthcare access, and job locations. Its clearest relative strength is poor or fair health.
Cost and housing
Housing benchmarks are $512,300 median home value and $1,577/mo median gross rent. Set those costs against a median household income of $91,502, while remembering that household circumstances and municipalities vary.
Who it may suit
Ada County may be worth a closer look for movers prioritizing poor or fair health, uninsured, and median household income. College attainment is 44.6% and life expectancy is 79.7 years.
Potential advantages
- Poor or fair health: 12.9%, rank #1 of 44 available Idaho counties.
- Uninsured: 7.1%, rank #1 of 44 available Idaho counties.
- Median household income: $91,502, rank #3 of 44 available Idaho counties.
Trade-offs to check
- Median gross rent: $1,577/mo, rank #44 of 44; investigate local variation before moving.
- Median home value: $512,300, rank #40 of 44; investigate local variation before moving.
- Unemployment rate: 3.3%, rank #12 of 44; investigate local variation before moving.
Income, housing, jobs, education & health
County metrics within Idaho
Rank and range use only counties in Idaho with that field available. A lower rank number is stronger when the metric has a clear direction.
Median household income
$91,502
$91,502; above the state county median of $67,492.
State rank #3 of 44 · U.S. Census Bureau — American Community Survey
Median home value
$512,300
$512,300; above the state county median of $321,300.
State rank #40 of 44 · U.S. Census Bureau — American Community Survey
Median gross rent
$1,577/mo
$1,577/mo; above the state county median of $915/mo.
State rank #44 of 44 · U.S. Census Bureau — American Community Survey
Unemployment rate
3.3%
3.3%; below the state county median of 3.9%.
State rank #12 of 44 · U.S. Bureau of Labor Statistics — Local Area Unemployment Statistics
Bachelor’s degree or higher
44.6%
44.6%; above the state county median of 22.7%.
State rank #3 of 44 · U.S. Census Bureau — American Community Survey
Life expectancy
79.7 years
79.7 years; above the state county median of 77.4 years.
State rank #5 of 42 · County Health Rankings & Roadmaps
Poor or fair health
12.9%
12.9%; below the state county median of 17.3%.
State rank #1 of 44 · County Health Rankings & Roadmaps
Uninsured
7.1%
7.1%; below the state county median of 11.3%.
State rank #1 of 44 · County Health Rankings & Roadmaps
Primary care access
1 per 1,128 residents
1 per 1,128 residents; below the state county median of 1 per 1,932 residents.
State rank #5 of 42 · County Health Rankings & Roadmaps
Mental health access
1 per 242 residents
1 per 242 residents; below the state county median of 1 per 700 residents.
State rank #3 of 43 · County Health Rankings & RoadmapsCommon questions
Ada County FAQ
Is Ada County a good place to live?
Ada County may be worth a closer look for movers prioritizing poor or fair health, uninsured, and median household income. College attainment is 44.6% and life expectancy is 79.7 years.
What should I know before moving to Ada County?
Start with housing, employment, commute, schools, healthcare access, and the specific municipality. Housing benchmarks are $512,300 median home value and $1,577/mo median gross rent. Set those costs against a median household income of $91,502, while remembering that household circumstances and municipalities vary.
What is the population of Ada County?
Ada County has 518,935 residents in the 2020–2024 ACS 5-year dataset.
What is the FIPS code for Ada County?
The five-digit county FIPS code is 16001; the parent state FIPS is 16.
What is the median household income in Ada County?
The ACS median household income is $91,502.
How much does housing cost in Ada County?
Housing benchmarks are $512,300 median home value and $1,577/mo median gross rent. Set those costs against a median household income of $91,502, while remembering that household circumstances and municipalities vary.
What is the unemployment rate in Ada County?
The BLS LAUS annual-average unemployment rate is 3.3%.
Similar population
Nearby counties in the state ranking
#2Canyon County250,790
#3Kootenai County181,996
#4Bonneville County129,523
#5Twin Falls County93,734
Source and gate
Methodology and source periods
All records join by five-digit FIPS. Profiles publish when ACS county population is at least 100,000 or the county is the state’s largest. Missing source values remain unavailable and are excluded from ranks. Runtime data was generated 2026-07-26.
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