Ada County Property Tax Rate
Idaho
Ada County, Idaho has an effective property tax rate of 0.52%, which is 43% lower than the national average of 0.92%. On a home valued at $512,300, homeowners pay approximately $2,655 per year in property taxes. Ada County ranks #11 out of 44 counties in Idaho for property tax rates.
$2,655
Per year
$512,300
2024 estimate
2.9%
Median income: $91,502
#11
of 44 counties in ID
Tax Breakdown
With Mortgage
$2,610
median annual tax
Without Mortgage
$2,755
median annual tax
Homeowners with a mortgage in Ada County pay on average -$145 more per year than those without. This difference often reflects how property tax escrow accounts in mortgaged homes capture the full tax obligation.
How Ada County Compares
Top Counties in Idaho
Historical Property Tax Trends
| Year | Median Tax | Median Home Value | Effective Rate |
|---|---|---|---|
| 2020 | $2,058 | $298,600 | 0.69% |
| 2021 | $2,229 | $342,500 | 0.65% |
| 2022 | $2,504 | $423,500 | 0.59% |
| 2023 | $2,643 | $476,000 | 0.56% |
| 2024 | $2,655 | $512,300 | 0.52% |
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates
Idaho Property Tax Exemptions
Available to Ada County homeowners
General Homestead
50% of assessed value or $125,000, whichever is less
Primary residence owners as of January 1
Circuit Breaker (Over 65/Disabled)
Up to $1,500 reduction in property taxes
Homeowners age 65+, disabled, widows/widowers, or blind; income limits apply
Disabled Veteran
Up to $1,500 reduction in property taxes
Veterans with 10%+ service-connected disability; income limits apply
Not sure which exemption applies to you? See our full homestead exemption guide for all 50 states, including amounts and application deadlines.
Property Tax Calculator
Estimate your annual property tax in Ada County
Estimated Annual Property Tax
$1,560
$130/month · Rate: 0.52%
Compare other counties with the Idaho Property Tax Calculator.
Pay Your Ada County Property Tax
Due: December 20 / June 20 (semi-annual)
Pay online or view your bill through the official Ada County tax office.
Go to Official Payment Site →Opens the county's official website in a new tab.
Nearby Counties
Quick Facts
Think your property tax is too high?
Homeowners save an average of $1,148/year by appealing their assessment.
Learn How to Appeal →Cities in Ada County
Explore property tax data for 4 cities in Ada County, Idaho.
| City | Annual Tax | Rate |
|---|---|---|
| Boise City | $2,817 | 0.62% |
| Meridian | $2,497 | 0.51% |
| Eagle | $3,493 | 0.49% |
| Kuna | $2,111 | 0.52% |
Frequently Asked Questions
Data Source: U.S. Census Bureau, 2024 American Community Survey 5-Year Estimates. Effective tax rates are calculated by dividing median real estate taxes paid by median home value. Actual property tax rates may vary based on local taxing jurisdictions, exemptions, and assessment practices. This information is for general reference only and should not be used as a substitute for professional tax advice.