Below is a list of Nashua IA zip codes. For your research we have also included Nashua Area Code, Time Zone, UTC and the local Chickasaw County FIPS Code. Each Nashua Iowa zip code has a center Longitude / Latitude point (the Nashua center is -92.538803100586 / 42.953498840332). For your convenience we have also indicated if that zip code in Nashua observes Daylight Savings time.