Below is a list of Old Monroe MO zip codes. For your research we have also included Old Monroe Area Code, Time Zone, UTC and the local Lincoln County FIPS Code. Each Old Monroe Missouri zip code has a center Longitude / Latitude point (the Old Monroe center is -90.750396728516 / 38.933200836182). For your convenience we have also indicated if that zip code in Old Monroe observes Daylight Savings time.