Below is a list of Adair IL zip codes. For your research we have also included Adair Area Code, Time Zone, UTC and the local Mcdonough County FIPS Code. Each Adair Illinois zip code has a center Longitude / Latitude point (the Adair center is -90.49690246582 / 40.416999816895). For your convenience we have also indicated if that zip code in Adair observes Daylight Savings time.