Year	County
1911	Crawford, Douglas, Grant, Iowa, Oneida, Pepin, Price, Racine, Richland, Sawyer, Vilas, and Washburn
1926	Milwaukee
1967	Milwaukee
1969	All counties, except Forest, Kenosha, Langlade, Marathon, Milwaukee, Oneida, Ozaukee, Portage, Racine, Vilas, Walworth, WAshington, Waukesha, and Wood
1970	All counties, except Florence, Forest, Langlade, Oneida, Portage, Vilas and Wood