Cost of homeownership in Petroleum County, Montana
Real dollar cost of ownership, rent-vs-buy analysis, and flood risk, backed by Census ACS, FEMA, and FHFA data. Population: 416.
Total annual ownership cost
Breakdown of what owning a typical home in Petroleum County costs each year.
- Property taxes$1,298
- Insurance estimate$1,500
- Utilities / energy$1,402
- Maintenance (1% of value)$1,526
- Total$5,726/yr · $477/mo
Insurance and energy figures typically vary by property. Adjust in the calculators for a personalized estimate.
Rent vs. buy in Petroleum County
Pre-filled with local median home value, median gross rent (Census ACS / HUD FMR), and current FRED rate.
Home price trend in Montana
FHFA House Price Index, quarterly.
Property tax below state average.
Share of units owner-occupied (Census ACS).
Census ACS 5-year estimate.
Housing cost burden in Petroleum County
Share of households paying 30% or more of income on housing (HUD CHAS 2017-2021). HUD does not publish county-level CHAS rollups through the public API, so Montana state data is shown for local context alongside the US average.
Affordability by income bracket
Monthly 30% housing budget at each income vs the median owner cost in Petroleum County. Bars above the dashed line can absorb this county's typical ownership cost.
HUD area median income (4-person household) for Montana: $95,700. Income limits define 80% AMI at $76,550 and 50% AMI at $47,850.
Frequently asked questions
How much does it cost to own a home in Petroleum County?
Based on Census ACS, typical total annual cost in Petroleum County is around $5,726 ($477 per month), covering property tax, insurance estimate, utilities, and 1% maintenance. Your actual cost varies by home age, size, and location within the county.
What is the property tax in Petroleum County?
Median annual property tax is $1,298 on the county's median home value of $152,600 (Census ACS).
Is it cheaper to rent or buy in Petroleum County?
On a monthly cash-flow basis, the typical owner-cost-with-mortgage in Petroleum County runs about 122% above the county's median rent. That comparison doesn't account for the opportunity cost on your down payment, maintenance reserve, transaction costs, or how long you plan to stay — use the calculator below to model your specific break-even year against your time horizon.
What is the flood risk in Petroleum County?
FEMA NFIP data for Petroleum County is pending.
Data sources
- Census ACS 5-year: FIPS 30069
- FEMA NFIP: flood claims aggregation
- HUD Fair Market Rents
- HUD CHAS: cost-burden rollups
- HUD Income Limits
- FHFA HPI
- FRED MORTGAGE30US: as of 2026-05-07