Below is a list of Sentinel OK zip codes. For your research we have also included Sentinel Area Code, Time Zone, UTC and the local Washita County FIPS Code. Each Sentinel Oklahoma zip code has a center Longitude / Latitude point (the Sentinel center is -99.175796508789 / 35.160499572754). For your convenience we have also indicated if that zip code in Sentinel observes Daylight Savings time.