Below is a list of Yarmouth IA zip codes. For your research we have also included Yarmouth Area Code, Time Zone, UTC and the local Des Moines County FIPS Code. Each Yarmouth Iowa zip code has a center Longitude / Latitude point (the Yarmouth center is -91.323501586914 / 41.026699066162). For your convenience we have also indicated if that zip code in Yarmouth observes Daylight Savings time.