Below is a list of Mifflin County PA zip codes. For your research we have also included Mifflin County Area Code, Time Zone, UTC and the local County FIPS Code. Each Mifflin County Pennsylvania zip code has a center Longitude / Latitude point (the Mifflin County center is -77.636299133301 / 40.593399047852). For your convenience we have also indicated if that zip code in Mifflin County observes Daylight Savings time.