Below is a list of Keyesport IL zip codes. For your research we have also included Keyesport Area Code, Time Zone, UTC and the local Clinton County FIPS Code. Each Keyesport Illinois zip code has a center Longitude / Latitude point (the Keyesport center is -89.272903442383 / 38.745498657227). For your convenience we have also indicated if that zip code in Keyesport observes Daylight Savings time.