Below is a list of Glenwood IL zip codes. For your research we have also included Glenwood Area Code, Time Zone, UTC and the local Cook County FIPS Code. Each Glenwood Illinois zip code has a center Longitude / Latitude point (the Glenwood center is -87.619598388672 / 41.547698974609). For your convenience we have also indicated if that zip code in Glenwood observes Daylight Savings time.