Wis. Stat. § 61.188
Any village having a population of 1,000 or more may proceed under s. 66.0101 to organize as a city of the appropriate class. The village may by charter or charter ordinance adopted under s. 66.0101 elect not to be governed by ch. 62 or 66 in whole or in part or may create that system of government considered by the village to be most appropriate. The charter or charter ordinance may include the following: method of election of members of the council by districts, at-large or by a combination of methods, procedure for election of the first common council, creation and selection of all administrative officers, departments, boards and commissions, powers and duties of all officers, boards and commissions and terms of office. The charter or charter ordinance may not alter those provisions of ch. 62 dealing with police and fire departments or chs. 115 to 121 dealing with education. Any village incorporated after August 12, 1959, may not become a city under this section unless it meets the standards for incorporation in ss. 66.0205 and 66.0207.
Wis. Stat. § 61.188