Washington County Property Taxes
Washington County, Idaho
Effective Tax Rate
0.00%
13.9% below state avgMedian Annual Tax
$0
$110/mo escrow
Estimate Your Tax
Annual Tax
$0
Monthly
$0
Eff. Rate
0.53%
At a Glance
Median Home Value
$250,300
State avg ▼ $311,932
Tax w/ Mortgage/yr
$1,582
$132/mo escrow
Tax w/o Mortgage/yr
$1,118
$93/mo
State Tax Rate Rank
#26
of 44 counties (1 = lowest)
Data Story
About Property Taxes in Washington County, Idaho
Washington's rate nears national median
Washington County's effective tax rate of 0.526% sits comfortably below the national median of 0.73%, placing it in the bottom 40% of U.S. counties. The median tax bill of $1,316 trails the national median of $2,690 by more than half, reflecting the county's lower median home values.
Nearly matches Idaho's average rate
Washington County's effective rate of 0.526% hovers just above Idaho's state average of 0.508%, making it a typical performer by state standards. At this rate, Washington homeowners pay $1,316 annually—only $213 below the state median, despite below-average home values.
Middle ground in a varied region
Washington County's 0.526% rate sits between the ultra-low rates of Teton (0.346%) and Valley (0.297%) counties and the elevated rate of Twin Falls (0.667%). This positions Washington as the regional middle ground, offering moderate tax burdens compared to its neighbors.
What the average Washington home costs annually
A homeowner with a median-valued Washington property ($250,300) pays approximately $1,316 in annual property taxes. With a mortgage, that bill rises to $1,582; without one, it drops to $1,118.
Lower home values don't eliminate appeal opportunities
Overassessment can happen at any price point, and Washington County homeowners should verify their assessments match comparable sales. Filing a free appeal with the county assessor costs nothing and could reduce your tax burden if your home was assessed above market value.
How Washington County Compares
Median Annual Property Tax
Washington County
0.53%
Effective rate
Idaho Avg
0.49%
Effective rate
National Avg
0.91%
Effective rate
Frequently Asked Questions
What is the property tax rate in Washington County, Idaho?
How much are property taxes in Washington County?
How does Washington County compare to the Idaho average?
What is the median home value in Washington County, Idaho?
Why is Washington County property tax rate higher than the Idaho average?
How does Washington County rank for property taxes in Idaho?
Counties with Similar Tax Rates
Nearby Counties
Other Counties in Idaho
Data updated: March 2026
Data from U.S. Census Bureau, American Community Survey 2019-2023 5-Year Estimates. Effective tax rate is calculated as median property tax divided by median home value.