Below is a list of O Brien FL zip codes. For your research we have also included O Brien Area Code, Time Zone, UTC and the local Suwannee County FIPS Code. Each O Brien Florida zip code has a center Longitude / Latitude point (the O Brien center is -82.940399169922 / 30.038299560547). For your convenience we have also indicated if that zip code in O Brien observes Daylight Savings time.