Below is a list of Guymon OK zip codes. For your research we have also included Guymon Area Code, Time Zone, UTC and the local Texas County FIPS Code. Each Guymon Oklahoma zip code has a center Longitude / Latitude point (the Guymon center is -101.4820022583 / 36.689601898193). For your convenience we have also indicated if that zip code in Guymon observes Daylight Savings time.