Below is a list of Lacon IL zip codes. For your research we have also included Lacon Area Code, Time Zone, UTC and the local Marshall County FIPS Code. Each Lacon Illinois zip code has a center Longitude / Latitude point (the Lacon center is -89.408302307129 / 41.024501800537). For your convenience we have also indicated if that zip code in Lacon observes Daylight Savings time.