Below is a list of Yellowstone National Park WY zip codes. For your research we have also included Yellowstone National Park Area Code, Time Zone, UTC and the local Park County FIPS Code. Each Yellowstone National Park Wyoming zip code has a center Longitude / Latitude point (the Yellowstone National Park center is -110.55000305176 / 44.771198272705). For your convenience we have also indicated if that zip code in Yellowstone National Park observes Daylight Savings time.