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
217IllinoisOwanecoCentral
618IllinoisSt PeterCentral
630IllinoisSt CharlesCentral
847IllinoisRound LakeCentral
847IllinoisSkokieCentral
618IllinoisAltamontCentral
309IllinoisDelavanCentral
618IllinoisIukaCentral
618IllinoisCreal SpringsCentral
309IllinoisFarmingtonCentral
224IllinoisDes PlainesCentral
630IllinoisGenevaCentral
217IllinoisWeldonCentral
815IllinoisMendotaCentral
309IllinoisHudsonCentral
331IllinoisNapervilleCentral
618IllinoisNobleCentral
847IllinoisDundeeCentral
847IllinoisLa Grange ParkCentral
708IllinoisThorntonCentral
309IllinoisHillsdaleCentral
618IllinoisDupoCentral
618IllinoisUllinCentral
309IllinoisLa FayetteCentral
217IllinoisChicagoCentral