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County tax profile · 2026 · Census ACS + IRS data

Property Tax & Income in Madison County, Montana

Madison County has an effective property tax rate of 0.41%. On the median home value of $470,100, that's roughly $1,937 per year. Median household income is $75,250.

Effective Property Tax Rate1
0.41%
median tax $1,937 ÷ median home $470,100
Median Home Value1
$470,100
owner-occupied
Median Household Income1
$75,250
per-capita $43,428
Est. Annual Tax on Median Home1
$1,937
at 0.41% effective rate

What you'll pay, at a glance

Property taxes are the largest local tax most homeowners pay. The effective rate measures the real tax bill as a share of home value — a more useful number than the nominal “mill rate,” because assessment practices vary county to county.

MetricMadison CountyMontana (state context)
Effective property tax rate10.41%0.68%
Median home value1$470,100—
State income tax3top rate 5.65%top rate 5.65%
State sales tax30.00% combined0.00% combined

How this is calculated

The effective property tax rate is the median real-estate tax bill divided by the median home value — both for owner-occupied homes, from the U.S. Census Bureau's American Community Survey (ACS 5-year estimates)1. Median income is also from the ACS1. Federal and state income-tax figures use IRS2 and Tax Foundation3 data.

About Madison County, MT

Buyers eyeing Madison County, Montana, where Ennis and smaller communities like Alder and Cameron anchor the area, will find property taxes unusually gentle by national standards. The median home value sits at $470,100, yet the annual real-estate tax bill comes to just $1,937, reflecting an effective rate of 0.412%. That's well beneath Montana's statewide median of 0.677% and less than half the national figure of 0.794%. Among the state's 56 counties, Madison ranks 56th for property tax rate, meaning no other Montana county taxes property more lightly. Households here earn a median of $75,250, with per-capita income at $43,428. For someone weighing a purchase, the combination of higher home prices and notably low carrying costs could ease the long-term expense of ownership, since annual taxes claim a smaller share of income than in most places.

Frequently asked questions

What is the property tax rate in Madison County, MT?
The effective rate is 0.41% — meaning the median tax bill equals about 0.41% of the median home value.
How much are property taxes on a median home?
On the median home ($470,100), the estimated annual bill is about $1,937.
Is Madison County's rate high or low?
Compare it to the state median of 0.68% and the national average near 1.1%.
How does the effective rate differ from my mill rate?
A mill rate is the nominal levy per $1,000 of assessed value. The effective rate reflects what you actually pay after exemptions and assessments — it's the median tax bill as a share of median home value, so it better predicts your real cost.
Will a reassessment raise my tax bill?
Not necessarily. If your home's assessed value rises, your bill can go up, but only if the mill rate and exemptions stay flat. Contact the Madison County assessor's office to review your current assessment.
Can I appeal my property tax assessment?
Yes. Most counties allow an appeal when you believe the assessed value exceeds the market value. File with the Madison County assessor within the local deadline, typically with comparable sales as evidence.
Sources
[1] U.S. Census Bureau — ACS 5-Year (2023) — Median home value (B25077), median real-estate taxes (B25103), median household income (B19013), per-capita income (B19301).
[2] IRS — Statistics of Income — County income, AGI, and real-estate taxes paid.
[3] Tax Foundation — State income, sales, corporate, and estate/inheritance tax rates.