Below is a list of El Dorado KS zip codes. For your research we have also included El Dorado Area Code, Time Zone, UTC and the local Butler County FIPS Code. Each El Dorado Kansas zip code has a center Longitude / Latitude point (the El Dorado center is -96.858200073242 / 37.817401885986). For your convenience we have also indicated if that zip code in El Dorado observes Daylight Savings time.