Below is a list of Powder River WY zip codes. For your research we have also included Powder River Area Code, Time Zone, UTC and the local Natrona County FIPS Code. Each Powder River Wyoming zip code has a center Longitude / Latitude point (the Powder River center is -106.98699951172 / 43.032001495361). For your convenience we have also indicated if that zip code in Powder River observes Daylight Savings time.