10 Counties with the Highest Property Tax Rates in New Hampshire
If you are comparing property taxes across New Hampshire, these 10 counties have the highest effective rates in the state. The highest-rate county, Sullivan County, comes in at 2.38% — 0.61% higher than the New Hampshire average (1.77%). The statewide effective rate is 1.77%.
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| # | County | Effective Rate | Median Tax | Median Home Value |
|---|---|---|---|---|
| 1 | Sullivan County | 2.38% | $5,616 | $236,300 |
| 2 | Cheshire County | 2.32% | $5,968 | $257,200 |
| 3 | Coos County | 2.07% | $3,511 | $169,600 |
| 4 | Merrimack County | 2.00% | $6,617 | $330,600 |
| 5 | Strafford County | 1.98% | $6,582 | $332,400 |
| 6 | Grafton County | 1.88% | $5,624 | $298,500 |
| 7 | Hillsborough County | 1.76% | $6,791 | $385,500 |
| 8 | Rockingham County | 1.63% | $7,512 | $461,400 |
| 9 | Belknap County | 1.44% | $4,897 | $340,000 |
| 10 | Carroll County | 1.06% | $3,685 | $348,900 |
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 New Hampshire 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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