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More contact info for US Post Office:

US Post Office

5645 S Archer Ave
60638 Chicago

Phone:

(773) 767-1917

Fax:

(773) 767-8468

• https://tools.usps.com/go/POLocatorDetailsAction!input.action?locationTypeQ=po&address=&radius=&locationType=po&locationID=1358287&locationName=CLEARING&address2=&address1=5645+S+ARCHER+AVE&city=CHICAGO&state=IL&zip5=60638&zip4=9998&tollFree=800-ASK-USPS%