Below is a list of Dorchester County MD zip codes. For your research we have also included Dorchester County Area Code, Time Zone, UTC and the local County FIPS Code. Each Dorchester County Maryland zip code has a center Longitude / Latitude point (the Dorchester County center is -76.055397033691 / 38.457000732422). For your convenience we have also indicated if that zip code in Dorchester County observes Daylight Savings time.