Any county not listed for this state is $37 unless otherwise indicated.
 
1860 Census 
Washington - $27 each county

1880 Census
Washington - $37 each county 

1900 Census
Washington - $37 each county except for the following:
             $57 each for the counties of Snohomish, Whatcom 
             $97 each for the county of: Whitman 
            $127 each for the county of: Pierce
            $197 for Spokane County 
            $297 for King County
   (contact us for information on reducing the cost of populous areas 
   at "Comments")

1910 Census
Washington - $37 each county except for the following:
             $57 each for the counties of Skagit, Snohomish, Walla 
                    Walla, Yakima 
             $97 each for the counties of Kittitas, Whatcom, Whitman 
            $297 each for the counties of Pierce, Spokane
   The county of King is not available at this time
   (use "Comments" to contact us for way to reduce cost of populous
   counties)

1920 Census
Washington - $37 each county except for the following: 
             $57 each for the county of Chelan, Clallam, Clark,
                    Douglas,Lincoln, Okanogan, Stevens, Thurston, 
                    Walla Walla, Whitman 
             $97 each for the county of Grays Harbor, Kitsap, Lewis, 
                    Skagit, Snohomish, Whatcom, Yakima
            $297 each for the county of Pierce, (Spokane Cty. & City 
                    of Spokane)