Below is a list of Callaway MD zip codes. For your research we have also included Callaway Area Code, Time Zone, UTC and the local Saint Marys County FIPS Code. Each Callaway Maryland zip code has a center Longitude / Latitude point (the Callaway center is -76.52660369873 / 38.237701416016). For your convenience we have also indicated if that zip code in Callaway observes Daylight Savings time.