Any county not listed for this state is $37 unless otherwise indicated.
 
1900 Census
Oklahoma - $37 each county except for the following:
           $57 each for the counties of Kay, Kingfisher, Lincoln, Logan,
                  Noble, Oklahoma, Pottawatomie, Washita 
           $97 for the county of Woods

1910 Census 
Oklahoma - $37 each county except for the following:
           $57 each for the counties of: Canadian, Carter, Cleveland, 
                  Ellis, Garfield, Garvin, Hughes, Jackson, 
                  Kingfisher, Latimer, Lincoln, Logan, Murry, Muskogee,
                  Nowata, Payne, Pontotoc, Pottawatomie, Pushmataha,
                  Roges, Roger Mills, Seminole, Wagoner, Washington
          $67 each for the county of: Washita
          $77 each for the county of: Caddo, Kiowa, Le Flore  
          $87 each for the county of:  Tulsa
          $97 each for the county of: Craig, Grady, Kay, Ottawa, 
                  Pittsburg, Sequoyah, Woods
         $127 for the county of: Comanche
         $197 for the county of Oklahoma
   (use "Comments" to contact us for way to reduce cost of populous 
   counties)

1920 Census 
Oklahoma - $37 each county except for the following: 
           @17 for the county of: Washita
           $47 for the county of: Wagoner 
           $57 each for the counties of: Blaine, Caddo, Carter, 
                  Comanche, Garfield, Grady, Hughes, Jackson, Jefferson, 
                  Kay, Kiowa, Le Flore, Lincoln, Logan, Okfuskee, Osage, Ottawa, 
                  Pawnee, Payne, Pontotoc, Pottawatomie 
           $97 for the county of: Okmulgee
          $147 for the county of: Muskogee
          $197 each for the counties of: Oklahoma, Tulsa 
   (use "Comments" to get info on reducing cost of populous areas)