Below is a list of Leavenworth KS zip codes. For your research we have also included Leavenworth Area Code, Time Zone, UTC and the local Leavenworth County FIPS Code. Each Leavenworth Kansas zip code has a center Longitude / Latitude point (the Leavenworth center is -94.919998168945 / 39.324600219727). For your convenience we have also indicated if that zip code in Leavenworth observes Daylight Savings time.