Below is a list of Ainsworth IA zip codes. For your research we have also included Ainsworth Area Code, Time Zone, UTC and the local Washington County FIPS Code. Each Ainsworth Iowa zip code has a center Longitude / Latitude point (the Ainsworth center is -91.552200317383 / 41.287700653076). For your convenience we have also indicated if that zip code in Ainsworth observes Daylight Savings time.