Below is a list of Grindstone PA zip codes. For your research we have also included Grindstone Area Code, Time Zone, UTC and the local Fayette County FIPS Code. Each Grindstone Pennsylvania zip code has a center Longitude / Latitude point (the Grindstone center is -79.829696655273 / 40.013698577881). For your convenience we have also indicated if that zip code in Grindstone observes Daylight Savings time.