Team Logo. The Harrisburg City Islanders were a team in the USL Pro Division. They were affiliated with the Philadelphia Union of the MLS. In 2018, they changed their name to Penn FC. Retrieved from "https://prosportsteams.fandom.com/wiki/Harrisburg_City_Islanders?oldid=15595" Categories: Former USL Pro Teams Teams in Pennsylvania Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.