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
815IllinoisPlainfieldCentral
309IllinoisN HendersonCentral
309IllinoisGrovelandCentral
847IllinoisHampshireCentral
309IllinoisFarmingtonCentral
708IllinoisOak ForestCentral
309IllinoisCambridgeCentral
309IllinoisBellflowerCentral
217IllinoisEffinghamCentral
618IllinoisKampsvilleCentral
815IllinoisMc ConnellCentral
815IllinoisBraidwoodCentral
815IllinoisSheridanCentral
217IllinoisHullCentral
815IllinoisHardingCentral
618IllinoisCentraliaCentral
815IllinoisFlanaganCentral
815IllinoisLenaCentral
217IllinoisNiotaCentral
618IllinoisSaint JacobCentral
217IllinoisSaint JosephCentral
815IllinoisMaldenCentral
217IllinoisArcolaCentral
815IllinoisUticaCentral
815IllinoisTolucaCentral