53 Pa. Stat. § 180
There shall be presented to the court of quarter sessions of the county in which the decree for annexation has been entered, a petition, signed by at least twenty per centum of the qualified voters as shown by the registry for the last preceding election of the city, borough, township, or part of a township, so annexed, setting forth the decree of annexation, the date and place of record thereof, and praying said court to make such order or decree as will give to the people of the annexed territory representation in the different branches of government of said city, by erecting from said annexed territory, and creating therefrom, a ward, or wards, thereof; and thereupon it shall be the duty of the said court to make such order or decree as will give to the people of such annexed territory representation in the different branches of government of said city, and that will entitle the citizens of such annexed territory to enjoy and exercise full rights of citizenship in the city to which such territory has been annexed, by erecting and creating from said annexed territory a ward, or wards, thereof, to be duly constituted a ward, or wards, of the city to which such territory has been annexed and become a part; and said court shall number the ward or wards thus erected and created; and shall determine, and set forth in said decree, whether said annexed territory shall be erected into and created one ward or more than one ward of the city to which such territory has been annexed and become a part of; which said decree shall be entered in full upon the records of said court, and certified copies thereof, by the clerk of said court, under the seal of said court, shall be delivered to and filed by the clerk of the councils of said city and the secretary of the school district, or board of the school district, in which said ward or wards become located.
53 P.S. § 180