Below is a list of Corn OK zip codes. For your research we have also included Corn Area Code, Time Zone, UTC and the local Washita County FIPS Code. Each Corn Oklahoma zip code has a center Longitude / Latitude point (the Corn center is -98.780799865723 / 35.379001617432). For your convenience we have also indicated if that zip code in Corn observes Daylight Savings time.