Below is a list of Denison KS zip codes. For your research we have also included Denison Area Code, Time Zone, UTC and the local Jackson County FIPS Code. Each Denison Kansas zip code has a center Longitude / Latitude point (the Denison center is -95.629096984863 / 39.393699645996). For your convenience we have also indicated if that zip code in Denison observes Daylight Savings time.