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Area Codes in Illinois

ABCDEFGHIJKLMNOPQRSTUVWXYZ

Most populated cities in Illinois

ChicagoAurora, IllinoisRockford, IllinoisJoliet, IllinoisNaperville, IllinoisSpringfield, IllinoisPeoria, IllinoisElgin, IllinoisWaukegan, IllinoisCicero, IllinoisChampaign, IllinoisBloomington, IllinoisDecatur, IllinoisArlington Heights, IllinoisEvanston, IllinoisSchaumburg
Country Calling Code: +1
Area Code▲City↕Administrative Region↕City Population↕Country/RegionTimezone
217—Illinois12,772,888United StatesAmerica/Chicago
224—Illinois12,772,888United StatesAmerica/Chicago
309—Illinois12,772,888United StatesAmerica/Chicago
312ChicagoIllinois2,695,598United StatesAmerica/Chicago
314St. LouisMissouri319,294United StatesAmerica/Chicago
331Aurora, IllinoisIllinois197,899United StatesAmerica/Chicago
563—Iowa2,955,010United StatesAmerica/Chicago
608—Wisconsin5,535,168United StatesAmerica/Chicago
618—Illinois12,772,888United StatesAmerica/Chicago
630—Illinois12,772,888United StatesAmerica/Chicago
708—Illinois12,772,888United StatesAmerica/Chicago
773ChicagoIllinois2,695,598United StatesAmerica/Chicago
779Rockford, IllinoisIllinois152,871United StatesAmerica/Chicago
815—Illinois12,772,888United StatesAmerica/Chicago
847—Illinois12,772,888United StatesAmerica/Chicago