Below is a list of Collinsville IL zip codes. For your research we have also included Collinsville Area Code, Time Zone, UTC and the local Madison County FIPS Code. Each Collinsville Illinois zip code has a center Longitude / Latitude point (the Collinsville center is -89.998901367188 / 38.681400299072). For your convenience we have also indicated if that zip code in Collinsville observes Daylight Savings time.