Willis Tower zip code
Zip code in Willis Tower, IL
The location Willis Tower belongs to Cook County, state of Illinois. Willis Tower has been assigned with the zip code 60684.
The location name Willis Tower is listed as unacceptable by the US Postal Service so any mailing should avoid it. Instead you can use Chicago, the official name of the location.
| Zip code | Type | Population |
|---|---|---|
| 60684 | UNIQUE | 0 |
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