60601 (area code: 312)
60602 (area code: 312)
60603 (area code: 312)
60604 (area code: 312)
60605 (area code: 312)
60606 (area code: 312)
60607 (area code: 312)
60608 (area code: 312)
60609 (area code: 773)
60610 (area code: 312)
60611 (area code: 312)
60612 (area code: 312)
60613 (area code: 312)
60614 (area code: 773)
60615 (area code: 312)
60616 (area code: 312)
60617 (area code: 773)
60618 (area code: 773)
60619 (area code: 773)
60620 (area code: 773)
60621 (area code: 773)
60622 (area code: 773)
60623 (area code: 773)
60624 (area code: 773)
60625 (area code: 773)
60626 (area code: 773)
60628 (area code: 773)
60629 (area code: 773)
60630 (area code: 773)
60631 (area code: 773)
60632 (area code: 773)
60633 (area code: 773)
60634 (area code: 773)
60636 (area code: 773)
60637 (area code: 773)
60638 (area code: 773)
60639 (area code: 773)
60640 (area code: 773)
60641 (area code: 773)
60643 (area code: 773)
60644 (area code: 773)
60645 (area code: 773)
60646 (area code: 773)
60647 (area code: 773)
60649 (area code: 773)
60651 (area code: 773)
60652 (area code: 773)
60653 (area code: 773)
60654 (area code: 312)
60655 (area code: 773)
60656 (area code: 773)
60657 (area code: 773)
60659 (area code: 773)
60660 (area code: 773)
60661 (area code: 312)
60663 (area code: 312)
60664 (area code: 312)
60666 (area code: 773)
60668 (area code: 312)
60669 (area code: 312)
60670 (area code: 312)
60673 (area code: 312)
60674 (area code: 312)
60675 (area code: 312)
60677 (area code: 312)
60678 (area code: 312)
60679 (area code: 312)
60680 (area code: 312)
60681 (area code: 312)
60682 (area code: 312)
60684 (area code: 312)
60685 (area code: 312)
60686 (area code: 312)
60687 (area code: 312)
60688 (area code: 312)
60689 (area code: 312)
60690 (area code: 312)
60691 (area code: 312)
60693 (area code: 312)
60694 (area code: 312)
60695 (area code: 312)
60696 (area code: 312)
60697 (area code: 312)
60699 (area code: 312)
60701 (area code: 773)
60706 (area code: 773)
60707 (area code: 708)
60712 (area code: 773)
60803 (area code: 708)
60804 (area code: 708)
60805 (area code: 708)
60827 (area code: 708)

Why is zip code data on an environmental science site?
In 2002 I was working on a project that correlated pollution and income for zip codes across the United States. Visitors told me the data files were very useful so I left them on the site and now update the postal information on a periodic basis even though the focus of the site is conservation.

Copyright Rhett Butler 2007

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