Granite County, MT Property Taxes (2026)

Granite County owners pay a median of $2,061 a year on a median home value of $339,500, an effective rate of 0.61%. That's the 41st-highest rate of 56 Montana counties with Census data, below the Montana county median of 0.71%.

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

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Effective tax rate

0.61%

41st highest of 56 in MT

Median annual bill

$2,061

~$172/month

Median home value

$339,500

Montana county median

0.71%

Effective rate

What a protest could save you in Granite County

Enter the market value from your appraisal notice. We apply Granite County's 0.61% effective rate and a 10–15% reduction, the typical range for successful protests.

$
Est. annual tax
$2,071
Savings at 10–15% off
$207–$311
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Granite County vs. Montana vs. U.S. property tax rates

Granite County0.61%
Montana county median0.71%
U.S. county median0.84%

Key stat: Granite County's effective property tax rate is 0.61%, vs. 0.71% for the median Montana county and 0.84% for the median U.S. county. It ranks 41st of 56 in Montana. 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 Granite County

  1. 1

    Review your assessment notice

    Check the assessed value from the Granite Department of Revenue. Compare it to recent sales of similar homes nearby.

  2. 2

    File your appeal before the deadline

    The Granite County deadline is Within 30 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 Department of Revenue.

  5. 5

    Get your decision

    If you win, your assessed value and bill go down. On a $2,061 bill, 10–15% off is $206–$309 a year.

Want help with it?

TaxDrop builds your case from comparable sales data.

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Property tax exemptions in Montana

Montana homeowners may qualify for exemptions that reduce taxable value. Check with the Granite Department of Revenue 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 Granite County, Montana?
The median effective property tax rate in Granite County is 0.61%: a median annual bill of $2,061 on a median home value of $339,500. That's the 41st-highest rate of 56 Montana 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 Granite County?
The median Granite County property tax bill is $2,061 a year, about $172 a month, compared with a Montana county median of $1,719.
What is the deadline to appeal property taxes in Granite County?
The deadline to appeal in Granite County is Within 30 days of notice. Missing it means waiting until the next assessment cycle.
Is Granite County a high property tax area?
Granite County's 0.61% effective rate is below the Montana county median of 0.71% and below the U.S. county median of 0.84%. That's the 41st-highest rate of 56 Montana counties with Census data.
Can TaxDrop help lower my Granite County property taxes?
TaxDrop analyzes your property against local comparable sales and helps you appeal your assessment.

Property taxes in nearby counties

Deer Lodge County

Rate: 0.81%

Median bill: $1,706

Powell County

Rate: 0.71%

Median bill: $1,809

Ravalli County

Rate: 0.53%

Median bill: $2,303

Missoula County

Rate: 0.91%

Median bill: $3,833

Silver Bow County

Rate: 1.05%

Median bill: $2,357

Jefferson County

Rate: 0.56%

Median bill: $2,274

Lewis and Clark County

Rate: 0.81%

Median bill: $2,886

Beaverhead County

Rate: 0.67%

Median bill: $1,876

← All 56 Montana counties

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