Below is a list of Pomeroy IA zip codes. For your research we have also included Pomeroy Area Code, Time Zone, UTC and the local Calhoun County FIPS Code. Each Pomeroy Iowa zip code has a center Longitude / Latitude point (the Pomeroy center is -94.678100585938 / 42.552898406982). For your convenience we have also indicated if that zip code in Pomeroy observes Daylight Savings time.