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
217IllinoisNauvooCentral
618IllinoisWest FrankfortCentral
309IllinoisStronghurstCentral
217IllinoisDieterichCentral
618IllinoisHerodCentral
309IllinoisEdelsteinCentral
217IllinoisWindsorCentral
217IllinoisBethanyCentral
815IllinoisRochelleCentral
618IllinoisHettickCentral
815IllinoisRockfordCentral
309IllinoisVarnaCentral
618IllinoisOlneyCentral
815IllinoisPutnamCentral
309IllinoisPeoriaCentral
217IllinoisOconeeCentral
815IllinoisMarengoCentral
618IllinoisUllinCentral
217IllinoisFindlayCentral
309IllinoisOrionCentral
217IllinoisPotomacCentral
217IllinoisBlue MoundCentral
618IllinoisOakdaleCentral
224IllinoisPalatineCentral
618IllinoisBrookportCentral