Zip Area Code

Illinois ZIP codes and area codes

Illinois has 1,616 towns and 1,575 ZIP codes, in 17 area codes, among them 217, 618 and 815.

Area codes in Illinois

  • 217

    Springfield, Champaign and Decatur

    Shares its area with 447

  • 618

    Collinsville, Belleville and Carbondale

    Shares its area with 730

  • 815

    Rockford, Joliet and Kankakee

    Shares its area with 779

  • 309

    Peoria, Bloomington and Rock Island

    Shares its area with 861

  • 847

    Northbrook, Roselle and Arlington Heights

    Shares its area with 224

  • 630

    Hinsdale, Naperville and Aurora

    Shares its area with 331

  • 708

    La Grange, Chicago Heights and Bellwood

    Shares its area with 464

  • 773

    Chicago

    Shares its area with 872

  • 312

    Chicago

    Shares its area with 872

  • 447

    Springfield, Champaign and Decatur

    Shares its area with 217

  • 730

    Collinsville, Belleville and Carbondale

    Shares its area with 618

  • 779

    Rockford, Joliet and Kankakee

    Shares its area with 815

  • 861

    Peoria, Bloomington and Rock Island

    Shares its area with 309

  • 224

    Northbrook, Roselle and Arlington Heights

    Shares its area with 847

  • 872

    Chicago

    Shares its area with 312 and 773

  • 331

    Hinsdale, Naperville and Aurora

    Shares its area with 630

  • 464

    La Grange, Chicago Heights and Bellwood

    Shares its area with 708

Largest towns

Counties, A to Z

Every town in Illinois, A to Z