Westmont Post Office

5707 S Cass Ave, Westmont, IL 60559

Contact Numbers

Phone: 630-968-0855
Fax: 331-251-2065
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours







Lobby Hours
PO Box Access Available

Monday 24 hours
Tuesday 24 hours
Wednesday 24 hours
Thursday 24 hours
Friday 24 hours
Saturday 24 hours
Sunday 24 hours

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 4:00pm
Sunday Closed

Passport Appointment Hours*

Monday 10:00am - 3:00pm
Tuesday 10:00am - 3:00pm
Wednesday 10:00am - 3:00pm
Thursday 10:00am - 3:00pm
Friday 10:00am - 3:00pm
Saturday 9:30am - 2:30pm
Sunday Closed

  • Visit our Passport FAQ page for a complete overview of what to bring, what you need to know, and how long it will take.
  • You will need two forms of Identification with copies.
  • A passport quality photo. Available at location.
  • The appropriate application form printed and filled out, and the required fee for applying or renewing.
  • You can find up to date costs, information, and forms at the State Departments Travel Site

*An appointment is required to apply for or renew US Passports. Please Call or schedule online.

Bulk Mail Acceptance Hours

Monday 9:00am - 2:00pm
Tuesday 9:00am - 2:00pm
Wednesday 9:00am - 2:00pm
Thursday 9:00am - 2:00pm
Friday 9:00am - 2:00pm
Saturday Closed
Sunday Closed

  • Bulk Mail Acceptance
  • Bulk Mail Account Balance
  • Bulk Mail New Permit
  • Burial Flags
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Packaged Stamps
  • Passport Acceptance
  • Passport Photo
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Lobby has Copier
  • Lot Parking
  • Passport Appointment Hours

Visit our Links Page for Holiday Schedule, Change of Address, Hold Mail/Stop Delivery, PO Box rentals and fees, and Available Jobs.

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

Nearby Post Offices:

Clarendon Hills
312 Park Ave
0.9 mile away

Downers Grove
920 Curtiss St
1.4 miles away

Wbd Carrier Annex
7140 Monroe St
1.8 miles away

Hinsdale
109 Symonds Dr
2.1 miles away

Reviews

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Is it the proper procedure now to leave packages on the door of the mailbox with it open so the parcels can be stolen? Plus the package is heavy and will break my mail box. Are they too lazy to get out of the truck to put it on the porch?
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My father passed away in april my brother had his mailed fowarded to his address but cancelled it on January 8th. Several items have been sent to me at this address and have not been recieved. Trying to break off all fowards and holds on mail for a darien address.
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My mail carrier marked my box as VACANT and I haven’t gotten ANY mail in over 10 days. My daughter put a forwarding order in favor HER mail in November, but she’s getting hers just fine...but none of mine. So where is my mail? There’s important things I need. Frustrated beyond words.
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I have noticed on my block a very young man driving a mail truck delivering mail. NO uniform missing delivers and on some days not even picking up mail.
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Who is postmaster for Westmont Illinois
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I keep getting my neighbors mail when there is a substitute mail person. I live at 30 north washington street and this idiot keeps giving me the mail for 24 n. washington. STOP THIS FROM HAPPENING!
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Your mail service sucks!!! In the last couple of days I put cards in my mailbox with the red flag up!! 1st my Mom's Mother day card I put it in my mailbox thursday. I run to the post office on Saturday morning to make sure it got mailed!! This morning I put my son-inlaw birthday card in my box with the flag up!!# it still there at 3:10pm!#! I am an old person!!! I have a bad knee!!!So on my 3 days off, if I dont have to!! I dont go down my 20 stairs to check my mail or have to get dressed to go to the post office to mail a letter like I did last Saturday..
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So it happen again!! I guess the red flag doesn't mean anything!! I guess if you don't get mail they don't pickup mail. This letter is time sensitive!! I put it in my box with a couple of days before it's due but it is still there at 34 E Richmond, Westmont. Back of house!!
• Replied to Vickie Johnsen

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Great
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