Wis. Stat. § 75.06: Applicability of chapter to 1st class cities.

For purposes of this chapter, “county” includes a city authorized to proceed under s. 74.87. Unless the context specifically indicates otherwise, all powers granted to counties by this chapter are granted to that city; all powers and duties granted to county governing bodies and officials are granted to the counterpart governing body and officials of that city; and all procedures and forms prescribed by this chapter as applicable to counties shall be applicable to that city, with the modifications necessary to retain substantial conformity with this chapter.