ZIP Codes in Illinois (Page 1)

Illinois has 1,645 ZIP codes across 1,315 places in our directory.

It is divided into 102 counties.

Counties in Illinois

Largest Places in Illinois

Showing the 300 largest of 1,315 places. Browse all places A–Z.

ZIP Codes in Illinois – page 1 of 2

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    Map of Illinois

    Centred on the average position of places in Illinois.