Below is a list of Sangamon County IL zip codes. For your research we have also included Sangamon County Area Code, Time Zone, UTC and the local County FIPS Code. Each Sangamon County Illinois zip code has a center Longitude / Latitude point (the Sangamon County center is -89.641799926758 / 39.777500152588). For your convenience we have also indicated if that zip code in Sangamon County observes Daylight Savings time.