Below is a list of Colesburg IA zip codes. For your research we have also included Colesburg Area Code, Time Zone, UTC and the local Delaware County FIPS Code. Each Colesburg Iowa zip code has a center Longitude / Latitude point (the Colesburg center is -91.202102661133 / 42.638401031494). For your convenience we have also indicated if that zip code in Colesburg observes Daylight Savings time.