Below is a list of Upper Darby PA zip codes. For your research we have also included Upper Darby Area Code, Time Zone, UTC and the local Delaware County FIPS Code. Each Upper Darby Pennsylvania zip code has a center Longitude / Latitude point (the Upper Darby center is -75.2725 / 39.9591). For your convenience we have also indicated if that zip code in Upper Darby observes Daylight Savings time. For more information on Upper Darby Pennsylvania you will find helpful business links and searches.