Property tax by ZIP code in Idaho
Enter an Idaho ZIP and see the median property tax paid, median home value, and effective tax rate from the 2020–2024 American Community Survey — plus how it compares to the Idaho state median.
Look up an Idaho ZIP code
Enter a 5-digit Idaho ZIP code above to see its property tax data.
ZIP doesn't have ACS data — typically because it's a PO-box-only ZIP, a single-business ZIP, or a small area where the Census suppresses small-sample estimates. Try a nearby ZIP.
ZIP isn't an Idaho ZIP code. This page covers Idaho only. Other states are launching state by state — check back, or use our state-by-state median page in the meantime.
Idaho's effective property-tax rate is one of the lowest in the country — about 0.49% of value statewide. Three things pull it down: the homeowner's exemption that shields the lesser of $125,000 or half of an owner-occupied home's value, a cap that holds each taxing district's property-tax budget growth to roughly 3% a year, and state-funded relief credited straight onto bills. Property is assessed at 100% of market value, so there's no fractional ratio to translate.
Type a 5-digit Idaho ZIP to pull its median property tax, median home value, and effective rate from the US Census American Community Survey 2020–2024 vintage, alongside the Idaho state and US national medians. The sections below walk through full market-value assessment, the five-year reappraisal cycle, the homeowner's exemption, the income-based circuit breaker and deferral programs, and why the statewide rate stays so low.
How Idaho property tax works
Idaho is a full-value state: each county assessor appraises property at 100% of market value, less any exemptions, and the State Tax Commission polices uniformity with annual ratio studies that compare assessments to actual sales. By statute every parcel must be physically reappraised at least once every five years on a phased schedule, with off-cycle parcels indexed to market movement in between so values don't fall stale.
The headline break for owner-occupants is the homeowner's exemption, which exempts the lesser of $125,000 or 50% of the market value of a primary residence (plus up to one acre of land). Lower-income owners can stack on the Property Tax Reduction program — Idaho's circuit breaker — which for 2026 cuts $250 to $1,500 off the bill for qualifying applicants whose 2025 income (after medical costs) is no more than $39,130 and who are 65 or older, widowed, blind, disabled, a former prisoner of war, or a fatherless or motherless minor; you apply between January 1 and April 15.
Owners who don't qualify for the reduction but still feel squeezed can use the Property Tax Deferral program, open to households with 2025 income of $61,674 or less, to postpone the bill and repay it later with interest. On the policy side, the relief is real and enacted, not proposed: 2023's House Bill 292 created the School District Facilities Fund and a Homeowner Property Tax Relief Account and became law retroactive to January 1, 2023.
Why your actual bill differs
The figures above describe a typical homeowner in this ZIP — not the bill on your parcel. Several things move a real bill off the median:
- Overlapping levies. Your bill is the sum of every district that taxes your parcel — county, city, school, highway, fire, and more — so two near-identical homes in different districts can owe noticeably different amounts.
- The homeowner's exemption. Knocking out the lesser of $125,000 or half a primary home's value drops an owner-occupant's taxable value below what an investor or second-home owner pays on the same house.
- Relief programs. The circuit-breaker Property Tax Reduction, the deferral option, and state-funded relief credited onto bills each pull a qualifying owner's payment below the ZIP median.
Idaho has no single statewide bill lookup — you go through the county treasurer, who bills each November and collects payment. Ada County's Treasurer property search is a working example for the Boise area; for other counties, find your county treasurer's site.
Methodology
Data on this page comes from the US Census American Community Survey 5-year estimates, 2020–2024 vintage (released January 29, 2026), at the ZIP Code Tabulation Area (ZCTA) level. After filtering ZCTAs the Census suppresses for privacy or small-sample reasons, this page covers 245 Idaho ZIPs.
Topcoding in Idaho. The Census caps median property tax at $10,000, reporting anything higher as $10,001. Idaho's home values keep every ZIP below the cap, so there are no topcoded ZIPs here and the figures are true medians.
See the full methodology page for source details (Census table IDs, the comparison-median rule, calculator formulas), how we handle topcoding across every state, and the refresh cadence.
Frequently asked questions
Why is the median tax in my ZIP different from what I pay?
The median is the ZIP's midpoint, not your quote. Idaho assesses at 100% of market value, but your bill stacks county, city, school, and special-district levies, and the homeowner's exemption plus the circuit-breaker and deferral programs push qualifying owners well below the median.
Why might my ZIP show $10,001 as the median tax?
That's the Census topcode for privacy, but it doesn't appear in Idaho — home values keep medians under the $10,000 cap, so every figure here is a true median with no topcoded ZIPs.
Where do I find my actual Idaho property tax bill?
Through your county treasurer, who bills each November and collects. Idaho has no statewide portal, so it's county by county. Ada County's Treasurer property search is a working example for the Boise area.
When does Idaho data update on this page?
Annually, when the Census Bureau releases a new ACS 5-year vintage. The 2020–2024 vintage released January 29, 2026. The next vintage (2021–2025) usually follows the next year, though the Census has not yet posted its release date.
Why don't you cover other states yet?
State-by-state rollout. Each state needs its own context section (assessment method, exemptions, local taxing structure) to be genuinely useful. High-search-volume states are going live first.