Below is a list of Walthall County MS zip codes. For your research we have also included Walthall County Area Code, Time Zone, UTC and the local County FIPS Code. Each Walthall County Mississippi zip code has a center Longitude / Latitude point (the Walthall County center is -90.133598327637 / 31.163000106812). For your convenience we have also indicated if that zip code in Walthall County observes Daylight Savings time.