Below is a list of Pittsfield IL zip codes. For your research we have also included Pittsfield Area Code, Time Zone, UTC and the local Pike County FIPS Code. Each Pittsfield Illinois zip code has a center Longitude / Latitude point (the Pittsfield center is -90.807502746582 / 39.611400604248). For your convenience we have also indicated if that zip code in Pittsfield observes Daylight Savings time.