Merchandise Mart Post Office

222 Merchandise Mart Plz Ste 102, Chicago, IL 60654

Contact Numbers:

Phone: 312-321-0233
Fax: 312-321-0453
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Pickup Services Hours

Monday-Friday 10:00am - 5:00pm
Saturday-Sunday Closed

Lobby Hours

Monday-Friday 10:00am - 5:30pm
Saturday-Sunday Closed

PO Box Access Hours

Monday-Friday 10:00am - 5:30pm
Saturday-Sunday Closed

PO Box Delivery Time

Monday-Friday 10:00am
Saturday-Sunday Closed

Last Collection Times

Monday-Friday 5:00pm
Saturday 12:00pm
Sunday Closed

Global Express Guaranteed® Hours

Monday-Friday 10:00am - 5:30pm
Saturday-Sunday Closed

*This facility does not process US Passports applications or renewals. Check nearby locations below.

  • Burial Flags
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Global Express Guaranteed®
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Priority Mail International®

Visit our Links Page for Change of Address, Hold Mail/Stop Delivery, PO Boxes™ rentals and fees, Rates on Postage Stamps and Freight/Shipping, Holidays, Bulk Mail, Money Orders, and Available Jobs.

*Please call to verify information. Is anything incorrect? Let us know here

Nearby Post Offices:

Finance Station E
100 W Randolph St
0.2 mile away

Fort Dearborn
540 N Dearborn St
0.2 mile away

168 N Clinton St Ste Front
0.3 mile away

Wacker Drive
233 S Wacker Dr Ste Ll1a
0.4 mile away


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i worked for the merchandise postoffice during the 1950's.
how many floors did that building have?

* is not a part of, or affiliated with, the official United States Postal Service (USPS).