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County tax profile · 2026 · Census ACS + IRS data

Property Tax & Income in Adams County, Idaho

Adams County has an effective property tax rate of 0.36%. On the median home value of $376,500, that's roughly $1,359 per year. Median household income is $61,808.

Effective Property Tax Rate1
0.36%
median tax $1,359 ÷ median home $376,500
Median Home Value1
$376,500
owner-occupied
Median Household Income1
$61,808
per-capita $36,243
Est. Annual Tax on Median Home1
$1,359
at 0.36% effective rate

What you'll pay, at a glance

Property taxes are the largest local tax most homeowners pay. The effective rate measures the real tax bill as a share of home value — a more useful number than the nominal “mill rate,” because assessment practices vary county to county.

MetricAdams CountyIdaho (state context)
Effective property tax rate10.36%0.45%
Median home value1$376,500—
State income tax3top rate 5.30%top rate 5.30%
State sales tax36.03% combined6.03% combined

How this is calculated

The effective property tax rate is the median real-estate tax bill divided by the median home value — both for owner-occupied homes, from the U.S. Census Bureau's American Community Survey (ACS 5-year estimates)1. Median income is also from the ACS1. Federal and state income-tax figures use IRS2 and Tax Foundation3 data.

About Adams County, ID

Adams County's effective property tax rate of 0.361% sits well beneath both benchmarks that matter most. The statewide median in Idaho is 0.446%, and the national median reaches 0.794%, so this county's rate runs roughly half the country's figure. Among Idaho's 44 counties, Adams County ranks 36th, placing it among the lower-taxed jurisdictions in the state. That ranking carries real weight for homeowners near Council, the county's largest town. With a median home value of $376,500, the median annual real-estate tax bill comes to about $1,359. Against a median household income of $61,808, property taxes here take up a smaller share of earnings than they would in most American counties. The gap between Adams County's rate and the national figure signals a comparatively inexpensive place to own property, though per-capita income of $36,243 suggests the surrounding economy is not especially wealthy.

Frequently asked questions

What is the property tax rate in Adams County, ID?
The effective rate is 0.36% — meaning the median tax bill equals about 0.36% of the median home value.
How much are property taxes on a median home?
On the median home ($376,500), the estimated annual bill is about $1,359.
Is Adams County's rate high or low?
Compare it to the state median of 0.45% and the national average near 1.1%.
How does the effective rate differ from my mill rate?
A mill rate is the nominal levy per $1,000 of assessed value. The effective rate reflects what you actually pay after exemptions and assessments — it's the median tax bill as a share of median home value, so it better predicts your real cost.
Will a reassessment raise my tax bill?
Not necessarily. If your home's assessed value rises, your bill can go up, but only if the mill rate and exemptions stay flat. Contact the Adams County assessor's office to review your current assessment.
Can I appeal my property tax assessment?
Yes. Most counties allow an appeal when you believe the assessed value exceeds the market value. File with the Adams County assessor within the local deadline, typically with comparable sales as evidence.
Sources
[1] U.S. Census Bureau — ACS 5-Year (2023) — Median home value (B25077), median real-estate taxes (B25103), median household income (B19013), per-capita income (B19301).
[2] IRS — Statistics of Income — County income, AGI, and real-estate taxes paid.
[3] Tax Foundation — State income, sales, corporate, and estate/inheritance tax rates.