Custer County, ID Property Taxes (2026)

Custer County owners pay a median of $903 a year on a median home value of $295,600, an effective rate of 0.31%. That's the 42nd-highest rate of 44 Idaho counties with Census data, below the Idaho county median of 0.50%.

Updated October 2026 · Data: U.S. Census Bureau, American Community Survey 5-Year Estimates (2019–2023)

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Effective tax rate

0.31%

42nd highest of 44 in ID

Median annual bill

$903

~$75/month

Median home value

$295,600

Idaho county median

0.50%

Effective rate

What a protest could save you in Custer County

Enter the market value from your appraisal notice. We apply Custer County's 0.31% effective rate and a 10–15% reduction, the typical range for successful protests.

$
Est. annual tax
$916
Savings at 10–15% off
$92–$137
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Custer County vs. Idaho vs. U.S. property tax rates

Custer County0.31%
Idaho county median0.50%
U.S. county median0.84%

Key stat: Custer County's effective property tax rate is 0.31%, vs. 0.50% for the median Idaho county and 0.84% for the median U.S. county. It ranks 42nd of 44 in Idaho. Effective rate = median tax bill ÷ median home value, so it already reflects typical exemptions. (Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2019–2023))

How to appeal your property taxes in Custer County

  1. 1

    Review your assessment notice

    Check the assessed value from the Custer County Assessor. Compare it to recent sales of similar homes nearby.

  2. 2

    File your appeal before the deadline

    The Custer County deadline is Within 60 days of notice. Missing it means waiting until the next assessment year.

  3. 3

    Gather evidence

    Recent comparable sales, photos of condition issues, repair estimates or an independent appraisal.

  4. 4

    Present your case

    Submit evidence or attend a hearing with the County Assessor.

  5. 5

    Get your decision

    If you win, your assessed value and bill go down. On a $903 bill, 10–15% off is $90–$135 a year.

Want help with it?

TaxDrop builds your case from comparable sales data.

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Property tax exemptions in Idaho

Idaho homeowners may qualify for exemptions that reduce taxable value. Check with the Custer County Assessor for amounts.

Homestead exemption

For your primary residence. Reduces the value used to calculate your bill.

Senior / over-65

Many states add an exemption or freeze for owners 65 and older.

Disability

For homeowners with qualifying disabilities, often similar to the over-65 benefit.

Veterans

Disabled veterans may get partial or full exemptions depending on rating.

Frequently Asked Questions

What is the property tax rate in Custer County, Idaho?
The median effective property tax rate in Custer County is 0.31%: a median annual bill of $903 on a median home value of $295,600. That's the 42nd-highest rate of 44 Idaho counties with Census data. Your own rate depends on which city, school district and special districts you're in. Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2019–2023).
How much are property taxes in Custer County?
The median Custer County property tax bill is $903 a year, about $75 a month, compared with a Idaho county median of $1,420.
What is the deadline to appeal property taxes in Custer County?
The deadline to appeal in Custer County is Within 60 days of notice. Missing it means waiting until the next assessment cycle.
Is Custer County a high property tax area?
Custer County's 0.31% effective rate is below the Idaho county median of 0.50% and below the U.S. county median of 0.84%. That's the 42nd-highest rate of 44 Idaho counties with Census data.
Can TaxDrop help lower my Custer County property taxes?
TaxDrop analyzes your property against local comparable sales and helps you appeal your assessment.

Property taxes in nearby counties

Lemhi County

Rate: 0.39%

Median bill: $1,109

Camas County

Rate: 0.42%

Median bill: $1,050

Blaine County

Rate: 0.39%

Median bill: $2,563

Butte County

Rate: 0.50%

Median bill: $986

Boise County

Rate: 0.37%

Median bill: $1,571

Valley County

Rate: 0.30%

Median bill: $1,778

Elmore County

Rate: 0.60%

Median bill: $1,680

Lincoln County

Rate: 0.48%

Median bill: $991

← All 44 Idaho counties

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