11 Pa.C.S. § 10408: Change of ward lines by council.

If council determines during proceedings for the division or creation of a ward that any of the boundaries or divisions are uncertain, council must determine the relocation of the line to conform as nearly as possible to the previously determined boundary lines so that each ward in the city is composed of compact and contiguous territory as nearly equal in population as practicable as officially and finally reported in the most recent Federal decennial or special census.