Below is a list of Grantsville MD zip codes. For your research we have also included Grantsville Area Code, Time Zone, UTC and the local Garrett County FIPS Code. Each Grantsville Maryland zip code has a center Longitude / Latitude point (the Grantsville center is -79.157203674316 / 39.696899414062). For your convenience we have also indicated if that zip code in Grantsville observes Daylight Savings time.