Below is a list of Haddam KS zip codes. For your research we have also included Haddam Area Code, Time Zone, UTC and the local Washington County FIPS Code. Each Haddam Kansas zip code has a center Longitude / Latitude point (the Haddam center is -97.305000305176 / 39.856800079346). For your convenience we have also indicated if that zip code in Haddam observes Daylight Savings time.