Below is a list of Muscatine County IA zip codes. For your research we have also included Muscatine County Area Code, Time Zone, UTC and the local County FIPS Code. Each Muscatine County Iowa zip code has a center Longitude / Latitude point (the Muscatine County center is -91.083297729492 / 41.50899887085). For your convenience we have also indicated if that zip code in Muscatine County observes Daylight Savings time.