Any county not listed for this state is $37 unless otherwise indicated.
 
1870 Census 
Montana Territory - $97

1880 Census 
Montana Territory - $97 

1900 Census 
Montana - $37 each county except for the following:
          $17 for the county of: Ravalli
          $97 for the county of: Silver Bow 

1910 Census 
Montana - $37 each for the counties of: Beaverhead, Broadwater, Carbon,
                 Custer, Dawson, Deer Lodge, Fergus, Flathead, 
                 Gallatin, Granite, Jefferson, Lewis & Clark, Lincoln, 
                 Meagher, Ravalli, Madison, Park, Powell, Rosebud, 
                 Sanders, Sweet Grass, Teton  
          $57 each for the counties of: Cascade, Chouteau, 
                 Valley, Yellowstone
          $67 for the county of: Missoula
          $97 for the county of: Silver Bow

1920 Census 
Montana - $37 each county except for the following: 
          $27 for the county of: Ravelli  
          $57 each for the counties of: Cascade, Fergus, Missoula  
          $97 for the county of: Silver Bow