Below is a list of Meridian OK zip codes. For your research we have also included Meridian Area Code, Time Zone, UTC and the local Logan County FIPS Code. Each Meridian Oklahoma zip code has a center Longitude / Latitude point (the Meridian center is -97.245796203613 / 35.843101501465). For your convenience we have also indicated if that zip code in Meridian observes Daylight Savings time.