Homeowners in Ada County, Idaho paid a median $2,655 a year in property tax on a median home worth $512,300, an effective rate of about 0.52% (Census 2020–2024).
0.49%Idaho statewide · US 0.94%
How Ada County compares
Effective rate (median tax ÷ median value)
Median tax paid per year
Tax on a home here
At the local 0.52% effective rate
| Home value | Estimated yearly tax | Per month |
|---|---|---|
| $150,000 | $777 | $65 |
| $250,000 | $1,296 | $108 |
| $350,000 | $1,814 | $151 |
| $500,000 | $2,591 | $216 |
Cities and towns in Ada County
| Place | Median tax | Median value | Rate |
|---|---|---|---|
| Boise City | $2,883 | $484,800 | 0.59% |
| Meridian | $2,452 | $531,600 | 0.46% |
| Eagle | $3,351 | $772,900 | 0.43% |
| Kuna | $1,991 | $423,900 | 0.47% |
| Star | $2,512 | $564,300 | 0.45% |
| Garden City | $2,592 | $449,500 | 0.58% |
| Hidden Springs | $4,395 | $773,500 | 0.57% |
Buying a home in Ada County? 2026 loan limits
Related
- Idaho property tax by countyall counties ranked
- Canyon County, ID0.52% effective
- Gooding County, ID0.51% effective
- Bonneville County, ID0.50% effective
- Bingham County, ID0.50% effective
- Elmore County, ID0.54% effective
Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, tables B25103 (median real estate taxes paid), B25077 (median home value), B25003, B25088, B19013 and B01003. These are 2020–2024 medians reported by owner-occupants, not 2026 tax bills or official mill rates. The effective rate here is median tax ÷ median home value. Actual bills depend on assessed value, exemptions (homestead, senior, veteran) and local levies. Check with your county assessor or treasurer. Not tax advice.
Frequently asked questions
What is the property tax rate in Ada County, Idaho?
Homeowners in Ada County, Idaho paid a median $2,655 a year in property tax on a median home worth $512,300, an effective rate of about 0.52% (Census 2020–2024).
How much is property tax on a $300,000 home in Ada County?
About $1,555 a year ($130 a month) at the 0.52% median effective rate. Your bill depends on assessed value and exemptions.
Is Ada County property tax high?
It ranks #34 lowest of 44 Idaho counties. The state median effective rate is 0.49% and the US rate is 0.94%.
Where do I pay property tax in Ada County?
Bills are issued and collected by the Ada County treasurer or tax collector, based on values set by the county assessor.