10 Counties with the Highest Property Tax Rates in Montana
If you are comparing property taxes across Montana, these 10 counties have the highest effective rates in the state. The highest-rate county, Blaine County, comes in at 1.52% — 0.77% higher than the Montana average (0.75%). The statewide effective rate is 0.75%.
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| # | County | Effective Rate | Median Tax | Median Home Value |
|---|---|---|---|---|
| 1 | Blaine County | 1.52% | $1,901 | $124,900 |
| 2 | Sheridan County | 1.29% | $1,436 | $111,600 |
| 3 | Roosevelt County | 1.29% | $1,535 | $119,400 |
| 4 | Dawson County | 1.17% | $2,199 | $187,400 |
| 5 | Valley County | 1.10% | $2,185 | $198,600 |
| 6 | Custer County | 1.10% | $2,242 | $204,200 |
| 7 | Hill County | 1.08% | $2,026 | $187,600 |
| 8 | Silver Bow County | 1.05% | $2,357 | $223,500 |
| 9 | Liberty County | 1.03% | $1,204 | $116,800 |
| 10 | Big Horn County | 1.00% | $1,482 | $148,200 |
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 Montana 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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