Below is a list of Dowell IL zip codes. For your research we have also included Dowell Area Code, Time Zone, UTC and the local Jackson County FIPS Code. Each Dowell Illinois zip code has a center Longitude / Latitude point (the Dowell center is -89.234100341797 / 37.940601348877). For your convenience we have also indicated if that zip code in Dowell observes Daylight Savings time.