Below is a list of Catonsville MD zip codes. For your research we have also included Catonsville Area Code, Time Zone, UTC and the local Baltimore County FIPS Code. Each Catonsville Maryland zip code has a center Longitude / Latitude point (the Catonsville center is -76.741798400879 / 39.265701293945). For your convenience we have also indicated if that zip code in Catonsville observes Daylight Savings time.