Wis. Stat. § 757.60: Judicial administrative districts.

The state is divided into judicial administrative districts for the purpose of administering the court system. Each district includes all the circuit courts within the district. The judicial administrative districts are as follows:

(1) The 1st district consists of Milwaukee County.

(2) The 2nd district consists of Kenosha, Racine and Walworth counties.

(3) The 3rd district consists of Dodge, Jefferson, Ozaukee, Washington, and Waukesha counties.

(4) The 4th district consists of Calumet, Fond du Lac, Green Lake, Manitowoc, Marquette, Sheboygan, Waushara, and Winnebago counties.

(5) The 5th district consists of Columbia, Dane, Green, Lafayette, Rock, and Sauk counties.

(7) The 7th district consists of Adams, Buffalo, Clark, Crawford, Grant, Iowa, Jackson, Juneau, La Crosse, Monroe, Pepin, Pierce, Richland, Trempealeau, and Vernon counties.

(8) The 8th district consists of Brown, Door, Kewaunee, Marinette, Oconto, Outagamie and Waupaca counties.

(9) The 9th district consists of Florence, Forest, Langlade, Lincoln, Marathon, Menominee, Oneida, Portage, Price, Shawano, Taylor, Vilas, and Wood counties.

(10) The 10th district consists of Ashland, Barron, Bayfield, Burnett, Chippewa, Douglas, Dunn, Eau Claire, Iron, Polk, Rusk, St. Croix, Sawyer, and Washburn counties.