The final vote during today's Legislative Reapportionment Commission, Senator Costa was the lone no vote. Legal Description _______DAUPHIN and PERRY Counties. Dist. 15 Part of DAUPHIN County consisting of the CITY of Harrisburg and the TOWNSHIPS of Derry, East Hanover, Halifax, Jackson, Jefferson, Lower Paxton, Lykens, Middle Paxton, Mifflin, Reed, Rush, South Hanover, Susquehanna, Upper Paxton, Washington, Wayne, West Hanover, Wiconisco and Williams and the BOROUGHS of Berrysburg, Dauphin, Elizabethville, Gratz, Halifax, Hummelstown, Lykens, Millersburg, Penbrook, Pillow and Williamstown and All of PERRY County. Total population: 254,449 Tags: Harrisburg Senator Pileggi 15th Senate District Tags: RLC Photo/Natalie Cake Harrisburg Perry County.