|   
Lake News Alerts We'd like to send you lake news articles, videos, and podcasts from around the web. 
         We will never share your email
     
 | 
                             Petroleum County, MT
    
        | Petroleum County Population: 493
 Population Density: 0.3 per square mile
 
 Water Area Percentage: 1.2% (20.11 square miles)
 Land Area Percentage: 98.8% (1,653.90 square miles)
 Total Area: 1,674.01 square miles
 Housing Units: 292 per square mile
 
 County Links
 
 
 
 
 
 
 |  |  |