Below is a list of Walnut Grove MO zip codes. For your research we have also included Walnut Grove Area Code, Time Zone, UTC and the local Greene County FIPS Code. Each Walnut Grove Missouri zip code has a center Longitude / Latitude point (the Walnut Grove center is -93.549697875977 / 37.411399841309). For your convenience we have also indicated if that zip code in Walnut Grove observes Daylight Savings time.