Below is a list of Phelps County MO zip codes. For your research we have also included Phelps County Area Code, Time Zone, UTC and the local County FIPS Code. Each Phelps County Missouri zip code has a center Longitude / Latitude point (the Phelps County center is -91.841499328613 / 37.858100891113). For your convenience we have also indicated if that zip code in Phelps County observes Daylight Savings time.