Below is a list of Treynor IA zip codes. For your research we have also included Treynor Area Code, Time Zone, UTC and the local Pottawattamie County FIPS Code. Each Treynor Iowa zip code has a center Longitude / Latitude point (the Treynor center is -95.609397888184 / 41.232398986816). For your convenience we have also indicated if that zip code in Treynor observes Daylight Savings time.