Below is a list of Locust Grove OK zip codes. For your research we have also included Locust Grove Area Code, Time Zone, UTC and the local Mayes County FIPS Code. Each Locust Grove Oklahoma zip code has a center Longitude / Latitude point (the Locust Grove center is -95.166397094727 / 36.199798583984). For your convenience we have also indicated if that zip code in Locust Grove observes Daylight Savings time.