Below is a list of Leighton IA zip codes. For your research we have also included Leighton Area Code, Time Zone, UTC and the local Mahaska County FIPS Code. Each Leighton Iowa zip code has a center Longitude / Latitude point (the Leighton center is -92.787498474121 / 41.338001251221). For your convenience we have also indicated if that zip code in Leighton observes Daylight Savings time.