Below is a list of Antioch IL zip codes. For your research we have also included Antioch Area Code, Time Zone, UTC and the local Lake County FIPS Code. Each Antioch Illinois zip code has a center Longitude / Latitude point (the Antioch center is -88.104301452637 / 42.476299285889). For your convenience we have also indicated if that zip code in Antioch observes Daylight Savings time.