Below is a list of Garrett County MD zip codes. For your research we have also included Garrett County Area Code, Time Zone, UTC and the local County FIPS Code. Each Garrett County Maryland zip code has a center Longitude / Latitude point (the Garrett County center is -79.266700744629 / 39.538299560547). For your convenience we have also indicated if that zip code in Garrett County observes Daylight Savings time.