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
618IllinoisClay CityCentral
217IllinoisAuburnCentral
618IllinoisOakdaleCentral
217IllinoisBethanyCentral
847IllinoisMorton GroveCentral
847IllinoisAlgonquinCentral
618IllinoisHerrinCentral
847IllinoisElginCentral
217IllinoisModestoCentral
815IllinoisRocktonCentral
217IllinoisHartsburgCentral
815IllinoisCoal CityCentral
309IllinoisCordovaCentral
618IllinoisSt PeterCentral
224IllinoisHighland ParkCentral
815IllinoisOttawaCentral
618IllinoisWest SalemCentral
779IllinoisBeloitCentral
309IllinoisHillsdaleCentral
217IllinoisSidneyCentral
847IllinoisBartlettCentral
847IllinoisNorthbrookCentral
618IllinoisGranite CityCentral
217IllinoisSorentoCentral
309IllinoisDownsCentral