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Cost of living in Idaho

Rent, taxes, earnings and more across all 44 Idaho counties.

Avg. 1-bed rent
$908/mo
Avg. household income
$65,770/yr
Avg. home value
$311,932
Avg. monthly cost
$2,824/mo
Cheapest county
Madison County
$2,323/mo for a single person
Most expensive county
Ada County
$3,665/mo for a single person

Last updated May 21, 2026

Taxes in Idaho

State income, sales and local tax rates.

State income tax
5.80%
Flat rate

Idaho has a flat state income tax rate of 5.8%.

State sales tax
6.00%
Combined sales tax
6.03%
incl. average local of 0.03%

Use our salary calculator to see your take-home pay in Idaho

Tax information is for general reference. Consult a qualified tax professional for advice on your specific situation.

Rent in Idaho

The average one-bedroom rent across Idaho is $908/mo. Rent varies from $711/mo in Bingham County to $1,534/mo in Owyhee County.

Cheapest rent

Most expensive rent

Cheapest places to live in Idaho

Top 10 counties by estimated single-person monthly cost.

Rankings include rent, utilities, groceries, transport, healthcare and taxes. See our methodology.

Most expensive places to live in Idaho

Top 10 counties by estimated single-person monthly cost.

Highest earning counties in Idaho

Top 10 by average household income.

All 44 counties in Idaho

Sorted by population. Type to filter.

Compare any two areas in Idaho

Put two counties side by side to see how rent, taxes and everyday costs stack up.

Open comparison tool

Frequently asked questions about Idaho

Common questions about cost of living, taxes and rent.

What is the cost of living in Idaho?

The average cost of living in Idaho is approximately $2,824 per month for a single person. This includes rent, utilities, groceries, transportation, healthcare and taxes. Costs range from $2,323/mo in Madison County to $3,665/mo in Ada County.

What is the average rent in Idaho?

The average one-bedroom rent in Idaho is $908 per month, based on HUD Fair Market Rent data across all 44 counties.

What is the average salary in Idaho?

The average household income in Idaho is $65,770 per year, according to U.S. Census Bureau data.

Does Idaho have state income tax?

Yes, Idaho has a flat state income tax of 5.8%.

What is the sales tax in Idaho?

The combined state and local sales tax rate in Idaho averages 6.03%. The state rate is 6.00% with an average local addition of 0.03%.

What are the cheapest places to live in Idaho?

The cheapest counties to live in Idaho based on overall monthly costs are: 1. Madison County ($2,323/mo), 2. Custer County ($2,425/mo), 3. Lemhi County ($2,474/mo), 4. Caribou County ($2,475/mo), 5. Latah County ($2,521/mo).

What are the most expensive places to live in Idaho?

The most expensive counties to live in Idaho based on overall monthly costs are: 1. Ada County ($3,665/mo), 2. Boise County ($3,520/mo), 3. Canyon County ($3,510/mo), 4. Owyhee County ($3,432/mo), 5. Kootenai County ($3,282/mo).

Use this research

Journalists, researchers and bloggers are welcome to cite and share this analysis. Please include a follow link back to this page when referencing our data. For bespoke analysis, expert comment, or high-resolution graphics, get in touch via our press office.

About this data

All figures on this page come from official U.S. government sources.

  • U.S. Census Bureau (ACS 5-Year Estimates)
  • HUD Fair Market Rents FY2025
  • Energy Information Administration (EIA)
  • Tax Foundation state and local rates
Methodology All data sources