Below is a list of Macomb IL zip codes. For your research we have also included Macomb Area Code, Time Zone, UTC and the local Mcdonough County FIPS Code. Each Macomb Illinois zip code has a center Longitude / Latitude point (the Macomb center is -90.671699523926 / 40.462398529053). For your convenience we have also indicated if that zip code in Macomb observes Daylight Savings time.