Below is a list of Oldenburg IN zip codes. For your research we have also included Oldenburg Area Code, Time Zone, UTC and the local Franklin County FIPS Code. Each Oldenburg Indiana zip code has a center Longitude / Latitude point (the Oldenburg center is -85.203903198242 / 39.340599060059). For your convenience we have also indicated if that zip code in Oldenburg observes Daylight Savings time.