Gem County, ID Property Tax Rate
Homeowners in Gem County pay an effective 0.39% of home value in property tax — about $1,432 a year on the median $367,300 home, below or near the Idaho county median of 0.50%.
Gem County, ID: 0.39% effective property tax — ~$1,432/yr on the median home.
- Effective rate0.39%
- Median home value$367,300
- Median annual bill$1,432
- ID county median0.50%
- U.S. county median0.84%
Source: U.S. Census ACS 2023 5-year (median taxes paid ÷ median value), compiled June 2026.
Gem County vs. Idaho and the U.S.
| Effective rate | On the county's $367,300 median home | |
|---|---|---|
| Gem County | 0.39% | $1,432 |
| Idaho county median | 0.50% | $1,836 |
| U.S. county median | 0.84% | $3,085 |
Median household income here is $66,245, putting the median tax bill at about 2.2% of income. Effective rates fold in homestead exemptions and assessment practice — they're what owners actually pay, which is why they beat statutory rates for comparison.
Highest & lowest rates in Idaho
| County | Effective rate | Median bill |
|---|---|---|
| Nez Perce County | 0.87% | $2,534 |
| Power County | 0.82% | $1,568 |
| Bannock County | 0.72% | $1,924 |
| Latah County | 0.68% | $2,329 |
| Clark County | 0.29% | $589 |
| Valley County | 0.30% | $1,798 |
| Custer County | 0.31% | $916 |
| Idaho County | 0.34% | $968 |
Full picture: Idaho property tax calculator · interactive county atlas · all county pages.
Frequently asked questions
What is the property tax rate in Gem County, ID?
The effective rate is about 0.39% of home value — the median homeowner pays roughly $1,432 a year on a $367,300 median home (ACS 2023 five-year data).
Is Gem County's property tax high?
It's below or near the Idaho county median (0.50%) and below the U.S. county median (0.84%).
How is the effective rate calculated?
Median real-estate taxes paid ÷ median home value, from the Census American Community Survey — what owners actually pay, after exemptions, rather than the statutory millage.
Sources & methodology
Sources: Census ACS 2023 5-year tables B25103/B25077.
Effective rate = median real-estate taxes ÷ median home value (owner-occupied). Individual bills vary with exemptions, assessment timing and local levies — verify with the county assessor.