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Gem County, Idaho: property tax rate, home values and income

Effective property tax rate

0.39%

36th highest of 44 counties in Idaho

Median home value

$367,300

8th highest in Idaho

Median household income

$66,245

19th highest in Idaho

Population

19,854

Census ACS 2023

Sources: US Census Bureau, American Community Survey 5-year estimates · Updated 11/03/2026

In Gem County, Idaho the effective property tax rate is 0.39%. The median homeowner pays $1,443 a year in real estate taxes on a home with a median value of $367,300. That rate is the 36th highest of the 44 Idaho counties with published data, and the 2948th highest of 3,132 counties in the United States.

Property tax in Gem County

The effective rate is the median real estate tax paid divided by the median home value. The Idaho statewide average is 0.53%, so Gem County is below it. Applying this county's rate to other home prices gives a rough idea of the yearly bill; actual bills depend on the school district, exemptions and the assessed value.

Home valueEstimated tax per yearPer month
$200,000$780$65
$300,000$1,170$98
$367,300 (county median)$1,440$120
$400,000$1,560$130
$500,000$1,950$163

Home values and incomes

The median home value is $367,300 (8th highest in Idaho, 293rd highest nationally) and the median household income is $66,245. Homes cost about 5.5 times a typical household's yearly income. Median gross rent is $887 a month. 76.6% of occupied homes are owner-occupied. Homeowners with a mortgage pay a median of $1,011 a year for insurance. For comparison, the Idaho statewide median home value is $476,754.

Counties near Gem County in the Idaho property tax ranking

CountyEffective rateMedian home value
Adams County0.41%$327,300
Bonner County0.40%$433,400
Blaine County0.39%$663,800
Gem County0.39%$367,300
Lemhi County0.39%$282,100
Boise County0.37%$424,100
Teton County0.35%$595,900

Frequently asked questions

What is the property tax rate in Gem County, Idaho?

The effective property tax rate is 0.39% of home value per year, the 36th highest of 44 counties in Idaho (Census ACS 2023 5-year estimates).

How much is property tax on a $300,000 home in Gem County?

At the county's effective rate of 0.39%, about $1,170 a year (roughly $98 a month). Your actual bill depends on the assessed value, your school district and exemptions.

What is the median home value in Gem County?

The median home value is $367,300 (Census ACS 2023 5-year estimates, owner-occupied homes).

What is the median household income in Gem County?

The median household income is $66,245 (Census ACS 2023 5-year estimates).