Below is a list of Troy Grove IL zip codes. For your research we have also included Troy Grove Area Code, Time Zone, UTC and the local La Salle County FIPS Code. Each Troy Grove Illinois zip code has a center Longitude / Latitude point (the Troy Grove center is -89.081901550293 / 41.467700958252). For your convenience we have also indicated if that zip code in Troy Grove observes Daylight Savings time.