The typical owner-occupied home in Petroleum County is worth about $201,400, 46% below the Montana median of $375,800 and 39% below the national median of $332,700. Owners pay a median $1,211 a year in property taxes, about 0.60% of their home's value, lower than the Montana rate of 0.72%. The median household earns $60,208 a year, so the median home costs 3.3 times the median income (5.2 times for Montana). 73% of occupied homes here are lived in by their owners, and 35% of those owners still have a mortgage.
Petroleum County at a glance
| Petroleum County | Montana | U.S. | |
|---|---|---|---|
| Median home value | $201,400 | $375,800 | $332,700 |
| Median property tax paid per year | $1,211 | $2,693 | $3,119 |
| Property tax as a share of value | 0.60% | 0.72% | 0.94% |
| Median household income | $60,208 | $72,509 | $80,734 |
| Homes lived in by their owners | 73% | 69% | 65% |
| Owner homes with a mortgage | 35% | 55% | 61% |
| Median monthly costs, owners with a mortgage | $1,635 | $1,798 | $1,963 |
| Those costs as a share of the owners' income | 23.3% | 21.9% | 21.0% |
| Median rent | $800 | $1,081 | $1,413 |
| Rent as a share of renters' income | 19.2% | 27.8% | 30.6% |
| Median year homes were built | 1983 | 1981 | 1980 |
| Vacant homes | 28.9% | 13.2% | 10.1% |
| Population | 447 | 1,116,875 | 334,922,499 |
What a typical home costs per month in Petroleum County
At this week's average 30-year rate of 7.11%, buying the median Petroleum County home of $201,400 with 20% down costs about $1,268 a month, including property taxes and insurance. With an FHA loan and 3.5% down, it's about $1,604, because the loan is bigger and FHA adds mortgage insurance.
Lenders usually want housing costs under about 28% of gross income, which means an income of roughly $54,363 for the 20%-down payment. That payment is 25% of the median Petroleum County household income of $60,208; at that income and 20% down, the 28% guideline points to a home of about $223,000.
The median rent here is $800 a month, so owning the median home costs about $468 a month more than renting, before you count the equity you build and any tax benefits.
| Down payment | $40,280 |
|---|---|
| Loan amount | $161,120 |
| Principal and interest | $1,084 |
| Property taxes (0.60% a year) | $101 |
| Homeowners insurance (our estimate, 0.5% a year) | $84 |
| PMI | $0 |
| Total per month | $1,268 |
Change the numbers in the calculator
| Down payment | $7,049 |
|---|---|
| Loan amount | $197,752 |
| Principal and interest | $1,330 |
| Property taxes (0.60% a year) | $101 |
| Homeowners insurance (our estimate, 0.5% a year) | $84 |
| FHA mortgage insurance | $89 |
| Total per month | $1,604 |
Change the numbers in the calculator
Questions about home buying in Petroleum County
What is the median home value in Petroleum County?
About $201,400 for owner-occupied homes, according to the Census Bureau's 2020–2024 American Community Survey.
How much are property taxes in Petroleum County?
Homeowners pay a median $1,211 a year, which is about 0.60% of the median home value. Your bill depends on your home's assessed value and local rates.
What income do you need to buy a home in Petroleum County?
For the median home with 20% down at 7.11%, the payment is about $1,268 a month. Keeping that under 28% of gross income takes about $54,363 a year.
More about Petroleum County
- Mortgage Refinance in Petroleum County
- Debt Relief in Petroleum County
- Home Equity Loans in Petroleum County
- Guides and quotes for mortgage refinance on our sister site, MortgageRefinance.com
Sources: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates; Freddie Mac Primary Mortgage Market Survey, week of November 12, 2026. Estimates for small places have wide margins of error. About our data