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
618IllinoisBeecher CityCentral
618IllinoisTrentonCentral
618IllinoisTamaroaCentral
618IllinoisSt PeterCentral
815IllinoisHarmonCentral
217IllinoisRochesterCentral
217IllinoisShumwayCentral
708IllinoisBuffalo GroveCentral
309IllinoisSan JoseCentral
618IllinoisHerodCentral
217IllinoisVersaillesCentral
217IllinoisGeorgetownCentral
815IllinoisLa Grange ParkCentral
217IllinoisChestnutCentral
309IllinoisEllsworthCentral
708IllinoisOak BrookCentral
815IllinoisLockportCentral
815IllinoisWilmingtonCentral
815IllinoisPutnamCentral
217IllinoisNew CantonCentral
815IllinoisCrescent CityCentral
309IllinoisAledoCentral
309IllinoisMacombCentral
815IllinoisLeaf RiverCentral
217IllinoisToledoCentral