Below is a list of Holdenville OK zip codes. For your research we have also included Holdenville Area Code, Time Zone, UTC and the local Hughes County FIPS Code. Each Holdenville Oklahoma zip code has a center Longitude / Latitude point (the Holdenville center is -96.399200439453 / 35.080299377441). For your convenience we have also indicated if that zip code in Holdenville observes Daylight Savings time.