Cost to Own
United StatesMontanaYellowstone County FIPS 30111 Data vintage ACS 2023 5-Year Rates updated 2026-07-30

Total monthly cost of ownership

Cost to Own a Home in Yellowstone County, Montana

A $318,000 home here costs

$2,481

per month, all in — with 20% down at today's 6.66% 30-year fixed rate.

A standard mortgage calculator would have told you $1,635. The real number is $846 higher every month — 52% more than the payment most buyers budget for.

County median: $317,600
Under 20% adds PMI
Freddie Mac PMMS
US average household

Where every dollar goes

Only the first line is a mortgage payment. Change any assumption above and every figure below recalculates.

Principal & interest30-year fixed, $254,400 borrowed $1,635
Property tax0.840% effective rate — Yellowstone County assessor via Census ACS $223
Homeowners insuranceEstimated at 0.60% of home value per year $159
Electricity14.67¢/kWh — Montana residential average, EIA $132
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year — the cost nobody budgets $265
Total monthly $2,481

How Yellowstone County compares

Yellowstone County ranks 1,558th of 3,133 US counties by effective property tax rate, meaning property taxes here are lower than in 1,575 counties and higher than in 1,557. Within Montana it ranks 19th of 56.

Yellowstone County 0.840% 0% higher than national
Montana average 0.767%
National median0.837%
Highest in America — Menominee County, WI3.636%

The numbers behind this page

MeasureYellowstone CountySource
Median home value$317,600ACS B25077
Median real estate taxes paid$2,669ACS B25103
Effective property tax rate0.840%Derived
Median gross rent$1,084ACS B25064
Occupied housing units69,272ACS B25003
Population167,340ACS B01003
Residential electricity price14.67¢/kWhEIA 5.6.A
30-year fixed mortgage rate6.66%Freddie Mac PMMS

Other counties in Montana

Compare the cost of the same home elsewhere in the state.

All 56 counties in Montana

Questions about owning here

What is the property tax rate in Yellowstone County?

The effective property tax rate in Yellowstone County, Montana is 0.840% of home value per year. On the county's median home value of $317,600, that works out to about $2,669 annually, or $222 per month.

How much does it cost to own a home in Yellowstone County?

A $318,000 home in Yellowstone County, Montana costs approximately $2,481 per month with 20% down at 6.66%. That breaks down as $1,635 principal and interest, $223 property tax, $159 insurance, $200 utilities and $265 set aside for maintenance.

Why is this higher than the payment my lender quoted?

Lender quotes usually show principal and interest only, and sometimes property tax and insurance. They almost never include electricity, water or a maintenance reserve. Here those add about $465 a month, which is why the real cost is 52% above the mortgage payment alone.

Is it cheaper to rent in Yellowstone County?

Median gross rent in Yellowstone County, Montana is $1,084 per month, compared with $2,481 to own the median home outright. Renting is cheaper month to month, though rent does not build equity and is not fixed for 30 years.

How much is the electric bill in Yellowstone County?

Montana residential electricity averages 14.67¢ per kWh. At the US average household usage of 899 kWh per month, that is about $132. Actual bills vary considerably with house size, insulation and climate.

Sources & methodology

  • Median home value, real estate taxes paid, gross rent, occupied units and population — US Census Bureau, American Community Survey ACS 2023 5-Year, tables B25077, B25103, B25064, B25003, B01003.
  • Effective property tax rate — median real estate taxes paid divided by median home value.
  • Mortgage rate — Freddie Mac PMMS, updated weekly.
  • Residential electricity price — US Energy Information Administration, Electric Power Monthly, Table 5.6.A.
  • Homeowners insurance (0.60%/yr), maintenance (1%/yr) and water and sewer ($68/mo) are modelled national estimates, not quoted figures. Every one is editable above.

Full methodology