Below is a list of Pottawattamie County IA zip codes. For your research we have also included Pottawattamie County Area Code, Time Zone, UTC and the local County FIPS Code. Each Pottawattamie County Iowa zip code has a center Longitude / Latitude point (the Pottawattamie County center is -95.609100341797 / 41.349201202393). For your convenience we have also indicated if that zip code in Pottawattamie County observes Daylight Savings time.