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
815IllinoisSauneminCentral
309IllinoisMineralCentral
618IllinoisVandaliaCentral
309IllinoisSummumCentral
847IllinoisLake ForestCentral
331IllinoisSaint CharlesCentral
779IllinoisNewarkCentral
309IllinoisWilliamsfieldCentral
708IllinoisPark ForestCentral
224IllinoisOak BrookCentral
708IllinoisMaywoodCentral
217IllinoisPhiloCentral
309IllinoisLa FayetteCentral
618IllinoisOlneyCentral
618IllinoisDorchesterCentral
618IllinoisElkvilleCentral
309IllinoisEllsworthCentral
309IllinoisMinierCentral
815IllinoisJolietCentral
309IllinoisHanna CityCentral
815IllinoisMartintonCentral
217IllinoisSadorusCentral
779IllinoisBelvidereCentral
217IllinoisFithianCentral
618IllinoisCypressCentral