Below is a list of Dowell MD zip codes. For your research we have also included Dowell Area Code, Time Zone, UTC and the local Calvert County FIPS Code. Each Dowell Maryland zip code has a center Longitude / Latitude point (the Dowell center is -76.463432312012 / 38.338455200195). For your convenience we have also indicated if that zip code in Dowell observes Daylight Savings time.