Wis. Stat. § 4.40: Fortieth assembly district.

All of the following territory constitutes the 40th assembly district:

(1) Columbia County. That part of Columbia County consisting of all of the following:

(a) The towns of Caledonia, Fort Winnebago, Lewiston, Marcellon, Pacific, and Wyocena.

(b) The villages of Pardeeville and Wyocena.

(c) The city of Portage.

(2) Sauk County. That part of Sauk County consisting of all of the following:

(a) The towns of Baraboo, Bear Creek, Fairfield, Franklin, Greenfield, Honey Creek, Merrimac, Prairie Du Sac, Spring Green, Sumpter, and Troy.

(b) The villages of Merrimac, Plain, Prairie Du Sac, Sauk City, Spring Green, and West Baraboo.

(c) The city of Baraboo.