Below is a list of Platte County WY zip codes. For your research we have also included Platte County Area Code, Time Zone, UTC and the local County FIPS Code. Each Platte County Wyoming zip code has a center Longitude / Latitude point (the Platte County center is -104.83499908447 / 42.17200088501). For your convenience we have also indicated if that zip code in Platte County observes Daylight Savings time.