Below is a list of Rapids City IL zip codes. For your research we have also included Rapids City Area Code, Time Zone, UTC and the local Rock Island County FIPS Code. Each Rapids City Illinois zip code has a center Longitude / Latitude point (the Rapids City center is -90.341598510742 / 41.582401275635). For your convenience we have also indicated if that zip code in Rapids City observes Daylight Savings time.