Below is a list of Galveston IN zip codes. For your research we have also included Galveston Area Code, Time Zone, UTC and the local Cass County FIPS Code. Each Galveston Indiana zip code has a center Longitude / Latitude point (the Galveston center is -86.189796447754 / 40.578800201416). For your convenience we have also indicated if that zip code in Galveston observes Daylight Savings time.