Below is a list of Little Sioux IA zip codes. For your research we have also included Little Sioux Area Code, Time Zone, UTC and the local Harrison County FIPS Code. Each Little Sioux Iowa zip code has a center Longitude / Latitude point (the Little Sioux center is -96.02660369873 / 41.807899475098). For your convenience we have also indicated if that zip code in Little Sioux observes Daylight Savings time.