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Petroleum County
City in Montana, United States
Overview
Petroleum County is one of the least populated areas in Montana, offering vast prairies, historic ranches, and a rooted sense of community. Visitors can expect authentic rural Montana life, abundant wildlife, and peaceful landscapes.
Geographic Context
Jurisdiction
United States
State
Montana
Population
496
Time Zone
America/Denver
Coordinates
47.12°, -108.25°
Key Metrics
Safety Score
85
Female Safety
68
LGBTQ+ Safety
35
Traffic Safety
90
Food Safety
92
Monthly Cost
$1,285
Local Cost
$860
Local Income
$2,100
Cashless
45
English
100
Temperature
8.9°C
Summer Avg
21.9°C
Winter Avg
-3.0°C
Record High
44.2°C
Record Low
-33.2°C
Humidity
59%
Precipitation
434 mm
City Vibrancy
—
Coworking
0
Cafes
0
Nightlife
0
Parks
0
Explore
Frequently Asked Questions
Data sources
Source-backed data
NASA POWER - Climate normals and monthly weather measurements rendered as city weather metrics. Updated 2026-03-23.
World Air Quality Index - Latest available city-level air quality station measurement. Updated 2025-12-05.
OpenStreetMap - Nearby amenities counted from OpenStreetMap-derived city extracts. Updated 2025-12-08.
Oyster List city price model - City price estimates calibrated from local price surveys and jurisdiction-level cost signals. Updated 2026-01-14.
Estimated data
Oyster List AI-assisted estimates - Safety, lifestyle, income, and practical scores are model-assisted estimates derived from source-backed country and city signals. Confidence 58/100.
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