Below is a list of Colo IA zip codes. For your research we have also included Colo Area Code, Time Zone, UTC and the local Story County FIPS Code. Each Colo Iowa zip code has a center Longitude / Latitude point (the Colo center is -93.319297790527 / 42.022399902344). For your convenience we have also indicated if that zip code in Colo observes Daylight Savings time.