Below is a list of Big Horn WY zip codes. For your research we have also included Big Horn Area Code, Time Zone, UTC and the local Sheridan County FIPS Code. Each Big Horn Wyoming zip code has a center Longitude / Latitude point (the Big Horn center is -106.97299957275 / 44.675399780273). For your convenience we have also indicated if that zip code in Big Horn observes Daylight Savings time.