Petroleum County, Montana — 2026 Loan Limits & Market Data

Petroleum County is located in Montana and offers a range of housing opportunities for homebuyers. The county's real estate market reflects the broader economic conditions and housing demand in the region.

For 2026, the conforming loan limit in Petroleum County is $832,750 for a single-family home, which is the national baseline. FHA borrowers can access loans up to $541,287 for a one-unit property. These limits determine the maximum loan amount available through conventional and government-backed financing before buyers would need to seek jumbo loans, which carry different qualification requirements and typically require higher down payments.

The rural character of Petroleum County means the housing market tends to feature larger lots and more land-inclusive properties compared to urban areas. Inventory may be more limited but prices are generally more accessible. The county covers 4 ZIP codes, and market conditions can vary between small towns and unincorporated areas. Exploring individual ZIP codes below provides specific pricing and market trend data for each community.