Below is a list of Mammoth PA zip codes. For your research we have also included Mammoth Area Code, Time Zone, UTC and the local Westmoreland County FIPS Code. Each Mammoth Pennsylvania zip code has a center Longitude / Latitude point (the Mammoth center is -79.463600158691 / 40.200698852539). For your convenience we have also indicated if that zip code in Mammoth observes Daylight Savings time.