Below is a list of Martinsburg MO zip codes. For your research we have also included Martinsburg Area Code, Time Zone, UTC and the local Audrain County FIPS Code. Each Martinsburg Missouri zip code has a center Longitude / Latitude point (the Martinsburg center is -91.647598266602 / 39.102199554443). For your convenience we have also indicated if that zip code in Martinsburg observes Daylight Savings time.