Illinois Area Codes

Here is the current list of area codes in the state of Illinois. There are 1025 area codes in Illinois that are currently being used. Find out all Illinois area codes below by searching each of the cities below. We have the most up-to-date list of area codes in Illinois.

Area Code State City Timezone
815IllinoisSenecaCentral
309IllinoisHenryCentral
309IllinoisFarmer CityCentral
217IllinoisHomerCentral
618IllinoisAltonCentral
618IllinoisUllinCentral
309IllinoisHudsonCentral
309IllinoisIllinois CityCentral
217IllinoisThomasboroCentral
815IllinoisApple RiverCentral
309IllinoisKirkwoodCentral
217IllinoisWinchesterCentral
217IllinoisNiotaCentral
217IllinoisArgentaCentral
618IllinoisMillstadtCentral
309IllinoisIndustryCentral
618IllinoisBrownsCentral
618IllinoisWest SalemCentral
217IllinoisRoodhouseCentral
815IllinoisPlainfieldCentral
847IllinoisPark RidgeCentral
618IllinoisDowCentral
309IllinoisAbingdonCentral
309IllinoisHanna CityCentral
618IllinoisJohnston CityCentral