10 Counties with the Highest Property Tax Rates in Idaho
If you are comparing property taxes across Idaho, these 10 counties have the highest effective rates in the state. The highest-rate county, Nez Perce County, comes in at 0.87% — 0.33% higher than the Idaho average (0.53%). The statewide effective rate is 0.53%.
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| # | County | Effective Rate | Median Tax | Median Home Value |
|---|---|---|---|---|
| 1 | Nez Perce County | 0.87% | $2,529 | $291,300 |
| 2 | Power County | 0.82% | $1,577 | $191,200 |
| 3 | Bannock County | 0.72% | $1,918 | $267,200 |
| 4 | Latah County | 0.68% | $2,333 | $342,500 |
| 5 | Twin Falls County | 0.67% | $1,951 | $292,700 |
| 6 | Lewis County | 0.67% | $1,348 | $202,400 |
| 7 | Jerome County | 0.64% | $1,623 | $254,000 |
| 8 | Caribou County | 0.60% | $1,330 | $220,200 |
| 9 | Elmore County | 0.60% | $1,680 | $278,300 |
| 10 | Clearwater County | 0.60% | $1,447 | $240,800 |
How this ranking is calculated
The effective property tax rate is the median annual property tax paid divided by the median home value in each county, expressed as a percentage. It is the most practical way to compare property tax burden between counties because it neutralizes differences in home values.
Counties with the highest rates in Idaho often share a few characteristics: lower home values and/or higher millage rates driven by school and local service funding needs.
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