Montana
Petroleum County
401 residents$59,318 median HHI1 ZIP codesUpdated April 28, 2026
Investor first look
Median home value
$173,700
ACS 5-Year
Cap rate proxy
5.3%
FMR × 0.65 ÷ Home Value
Rent-to-income
15.6%
HUD FMR ÷ ACS HHI
Net migration
—
IRS SOI
Permits (TTM)
—
Census BPS
Climate risk
1.3
FEMA NRI (0–100)
ZIP code breakdown1 ZIP codes
Numbers repeat across ZIPs in this county
ZIP-level home-value data isn't published for rural areas. Federal sources (Census ACS, HUD non-metro FMR) are available at the county level only, so home-value, cap-rate, and rent-gap numbers use the county estimate for every ZIP in the county.
| ZIP | Median home value | Rent (FMR 2BR) | Gross yield | Cap rate ↓ | Rent gap |
|---|---|---|---|---|---|
| 59087 | $173,700county est. | $1,548 | 10.7% | 5.3% | 50.3% |
Sort by any column. Click a ZIP for detail. Rent gap: green = HUD FMR above market rent.
Demographics
Owner-occupied
77.0%
Census ACS
Vacancy rate
32.2%
Census ACS
Bachelor's degree +
27.1%
Census ACS
Rent burdened
0.0%
Census ACS (>30% income)
Median age
51.5
Census ACS
U.S. Census Bureau — American Community Survey 5-Year Estimates
U.S. Census Bureau — Building Permits Survey
U.S. Department of Housing and Urban Development — Fair Market Rents / Small Area Fair Market Rents (SAFMR)
Internal Revenue Service — Statistics of Income Migration Data
FEMA — National Risk Index
Last updated: April 28, 2026