Wisconsin Statutes Platting Lands (Ch. 236) § 236.41. How notice given

(1) By posting a written notice thereof in at least 2 of the most public places in the county; and

(2) By publication of a copy of the notice as a class 3 notice, under ch. 985; and

(3) By service of the notice in the manner required for service of a summons in the circuit court on the municipality or town in which the subdivision is located, and if it is located in a county having a population of 750,000 or over, on the county; and

(4) By mailing a copy of the notice to the owners of record of all the lots in the subdivision or the part of the subdivision proposed to be vacated or altered at their last-known address.