Idaho
Ada County, Idaho has a median effective property tax rate of 0.61% — below the Idaho state average of 0.69%. For a home valued at $300,000, the estimated annual tax bill is $1,825 ($152/month). Rates vary by city within the county; browse the list below or use the calculator to estimate your bill.
Calculate your estimated property tax in Ada County, Idaho
Annual Property Tax
$913
Monthly Property Tax
$76
* This is an estimate based on the median tax rate. Actual taxes may vary based on local assessments and exemptions.
Property tax rates in Ada County, Idaho
0.492%
25% of properties pay this rate or less
0.608%
50% of properties pay this rate or less
0.670%
25% of properties pay more than this rate
These percentiles show the range of property tax rates. 25% of properties pay less than the low rate, 50% pay less than the median, and 75% pay less than the high rate.
The difference between the 25th and 75th percentiles is 0.178%, indicating the variation in property tax rates within this area. Use the median (50th percentile) for the most typical estimate.
State averages sourced from Tax Foundation 2024 data. National median: 1.07%.
Based on the median rate of 0.608%. Actual taxes depend on assessed value and local exemptions.
| Home Value | Annual Tax | Monthly Equivalent |
|---|---|---|
| $150,000 | $913 | $76/mo |
| $250,000 | $1,521 | $127/mo |
| $350,000 | $2,129 | $177/mo |
| $500,000 | $3,042 | $254/mo |
| $750,000 | $4,563 | $380/mo |
| $1,000,000 | $6,084 | $507/mo |
The median property tax rate across Ada County, Idaho is 0.61%. Individual cities within the county may have slightly different rates. Use our calculator to estimate your property taxes.