Below is a list of Howell County MO zip codes. For your research we have also included Howell County Area Code, Time Zone, UTC and the local County FIPS Code. Each Howell County Missouri zip code has a center Longitude / Latitude point (the Howell County center is -91.893402099609 / 36.722900390625). For your convenience we have also indicated if that zip code in Howell County observes Daylight Savings time.