Below is a list of Willow Springs IL zip codes. For your research we have also included Willow Springs Area Code, Time Zone, UTC and the local Cook County FIPS Code. Each Willow Springs Illinois zip code has a center Longitude / Latitude point (the Willow Springs center is -87.874298095703 / 41.725601196289). For your convenience we have also indicated if that zip code in Willow Springs observes Daylight Savings time.