Below is a list of Ralston IA zip codes. For your research we have also included Ralston Area Code, Time Zone, UTC and the local Carroll County FIPS Code. Each Ralston Iowa zip code has a center Longitude / Latitude point (the Ralston center is -94.629096984863 / 42.04109954834). For your convenience we have also indicated if that zip code in Ralston observes Daylight Savings time.