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
618IllinoisOakdaleCentral
309IllinoisMackinawCentral
815IllinoisSandwichCentral
618IllinoisSt PeterCentral
847IllinoisSchiller ParkCentral
312IllinoisNorthbrookCentral
618IllinoisValmeyerCentral
779IllinoisMarengoCentral
847IllinoisGlencoeCentral
815IllinoisCherry ValleyCentral
309IllinoisRock IslandCentral
815IllinoisAmboyCentral
618IllinoisFairfieldCentral
309IllinoisAstoriaCentral
618IllinoisElizabethtownCentral
217IllinoisBascoCentral
309IllinoisCropseyCentral
309IllinoisBellflowerCentral
708IllinoisSummitCentral
217IllinoisSibleyCentral
217IllinoisBroctonCentral
815IllinoisSenecaCentral
618IllinoisWood RiverCentral
618IllinoisSandovalCentral
815IllinoisRoscoeCentral