Data Idaho

Sourced figures for Idaho

Method

Every figure names a file.

Published by Preston Thatcher Yates. If a number is not in a cited table, it is not on this site.

Income tax

The calculator uses the Idaho State Tax Commission's annual percentage withholding table, document EPB00744, revised July 23, 2026. Single filers and heads of household are charged 5.3% of wages above $16,100. Married filers are charged 5.3% of wages above $32,200. The rate is the 5.3% flat rate in Idaho Code §63-3024.

The estimate ignores credits, itemized deductions, business income, and the separate lines on Form 40. It is not a filed return. Check the current table at tax.idaho.gov.

Worked example: married filing, $120,000 of wages. Taxable amount is $87,800. Tax is $4,653.40.

Homeowner's exemption

For a primary residence, the exemption is 50% of the home value up to $125,000, under Idaho Code §63-602G. A $200,000 primary residence exempts $100,000. A $400,000 primary residence exempts $125,000, not $200,000. If the home is not a primary residence, the exemption in this calculator is zero.

You apply with the county assessor. House Bill 843, effective January 1, 2026, changed filing and proration. It did not change the $125,000 cap. Read the Tax Commission page before relying on a deadline: homeowner's exemption.

Property tax

Taxable value is the home value minus the exemption. Tax is that value times the certified total levy for one code area. Levies are per dollar of taxable value.

Ada County figures come from the Treasurer's 2025 Code Area/District Listing, certified October 30, 2025. Canyon County figures come from the Treasurer's 2025 tax rates by code area. The district lines on each city page add up to the certified total.

A city is not a code area. Fire, cemetery, and highway districts change the bill from one street to the next. Coeur d'Alene and Post Falls are still blank. Kootenai County's 2025 certificate lists each district, but not a combined code-area total that can be checked the same way.

Worked example, primary residence valued at $503,852, which is the August 2026 Boise index rounded to the dollar. Code area 01 estimates $3,486.28. The same value in Meridian code area 03-15 estimates $1,696.84.

Housing

Home values are the Zillow Home Value Index for all homes, smoothed and seasonally adjusted, mid-tier, at city level. Rents are the Zillow Observed Rent Index, smoothed, all homes plus multifamily, at city level. Both series are dated August 31, 2026, and the prior point is August 31, 2025. Pages round to the nearest dollar. These are indexes, not the median closed sale and not a listing.

Data provided by Zillow Group. Source file page: Zillow Research housing data. This site does not offer the files for download.

Population and income

Population is table B01003 and median household income is table B19013 from the 2024 American Community Survey 5-year estimates, covering 2020 through 2024. The same survey is used for every city, including cities large enough for a 1-year estimate, so the pages stay comparable. These are survey estimates, not the 2020 census count.

Unemployment

Unemployment rates are Local Area Unemployment Statistics from the Bureau of Labor Statistics for September 2026, not seasonally adjusted. The September 2026 figures were marked preliminary when they were pulled. The comparison month is September 2025. Where BLS publishes a city series, the page uses it. Star, Middleton, and Garden City do not have a city series, so those pages use Ada County or Canyon County and say so.

Where people moved from

Where people moved to Idaho from uses IRS Statistics of Income migration data for filing years 2022–2023, released March 19, 2026. A household is one tax return. The people count is the exemptions on that return. The state total comes from the state file, not from adding counties. The file names a county, not a city. It is not the Census Bureau's state-to-state survey, and it is not a count of driver licenses. The release date, the disclosure rules, and the limits are on that report.

Where Idaho newcomers lived last year is a separate 2024 survey. Most people who moved stayed in Idaho. A smaller group lived in another state one year earlier, and only that group has a previous state. It prints a margin of error and cannot name a county. The Census Bureau released those tables on January 21, 2026. The two counts are not averaged.

Property crime

The 2025 property crime report uses FBI Crime in the United States estimates. The Idaho rate is Table 5. The Boise rate is Table 8, limited to a city agency that filed 12 complete months. It is not the Idaho State Police Crime in Idaho report, and it is not a safety ranking. Definitions and limits are on the property crime report.

What this edition does not do