Below is a list of Oreana IL zip codes. For your research we have also included Oreana Area Code, Time Zone, UTC and the local Macon County FIPS Code. Each Oreana Illinois zip code has a center Longitude / Latitude point (the Oreana center is -88.867401123047 / 39.936100006104). For your convenience we have also indicated if that zip code in Oreana observes Daylight Savings time.