Idaho · FIPS 16015 · ACS 2020–2024
Boise County, Idaho property tax rate
Homeowners in Boise County paid a median of $1,611 a year in real estate taxes on a median home value of $476,100 (2020–2024 survey). Taxes came to 0.38% of home value, 23% below the Idaho rate of 0.50% and 59% below the U.S. rate of 0.94%.
- 0.38%Effective tax rate±0.06% margin · Idaho: 0.50%
- $1,611Median tax per yearIdaho: $2,038 · U.S.: $3,119
- $476,100Median home valueIdaho: $418,600
- 3,244Owner-occupied homes90% of households own
| Measure | Boise County | Idaho | U.S. | Boise County 2019–2023 | Change |
|---|---|---|---|---|---|
| Effective tax rate | 0.38% | 0.50% | 0.94% | 0.42% | −0.04 pts |
| Median tax, all owners | $1,611 | $2,038 | $3,119 | $1,571 | +$40 (+2.5%) |
| Median tax, with a mortgage | $1,596 | $2,106 | $3,489 | $1,460 | +$136 (+9.3%) |
| Median tax, no mortgage | $1,632 | $1,934 | $2,576 | $1,769 | −$137 (-7.7%) |
| Median home value | $476,100 | $418,600 | $332,700 | $424,100 | +$52,000 (+12.3%) |
| Total taxes paid | $6,586,300 | $1,255,617,400 | $360,573,527,500 | $6,340,200 |
How Boise County compares
- Per $1,000 of home value, owners here paid about $3.84 a year, against $4.95 statewide and $9.40 nationally.
- Rank in Idaho: 9 of 36 counties from lowest to highest effective rate (among those with reliable estimates). Nationally, 6% of 2,682 counties had a lower rate.
- Homes with a mortgage: 0.36% of value; homes without one: 0.41%. Median bills: $1,596 and $1,632.
- Compared with the 2019–2023 survey, the effective rate fell (−0.04 pts) and the median tax changed +$40 (+2.5%). The two 5-year surveys share four years of responses, so year-to-year moves are small and partly noise.
- Margin of error: the effective rate is 0.38% ± 0.06% at 90% confidence, from a sample of the 3,244 owner-occupied homes.
Idaho counties with similar rates
| County | Effective rate | Median tax | Median value |
|---|---|---|---|
| Franklin County | 0.38% | $1,482 | $372,600 |
| Blaine County | 0.38% | $2,778 | $735,300 |
| Owyhee County | 0.39% | $1,432 | $359,800 |
| Fremont County | 0.39% | $1,398 | $314,200 |
| Bonner County | 0.40% | $1,847 | $487,900 |
| Cassia County | 0.40% | $1,166 | $284,600 |
| Kootenai County | 0.41% | $2,267 | $518,700 |
| Bear Lake County | 0.41% | $1,116 | $275,000 |
Sources
- U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, table-based summary file: B25090 (aggregate real estate taxes), B25082 (aggregate home value), B25103 (median real estate taxes), B25077 (median home value) and B25003 (tenure); files dated January 29, 2026.
- U.S. Census Bureau, American Community Survey 2019–2023 5-year estimates, same tables (files dated October 31, 2024), for the comparison column.
- Geography names: Census Bureau Geos20245YR.txt (file dated January 22, 2026).
Effective rate = total real estate taxes paid by owner-occupied homes ÷ their total value, as reported by owners to the Census Bureau. It is not a millage rate. Your bill depends on your assessed value, exemptions (such as homestead) and local levies.