Below is a list of Osage WY zip codes. For your research we have also included Osage Area Code, Time Zone, UTC and the local Weston County FIPS Code. Each Osage Wyoming zip code has a center Longitude / Latitude point (the Osage center is -104.42700195312 / 43.975299835205). For your convenience we have also indicated if that zip code in Osage observes Daylight Savings time.