Cary Post Office

NOTICE: The Postal Service is an essential government service, and will remain open wherever possible.

2707 3 Oaks Rd, Cary, IL 60013

Contact Numbers

Phone: 847-639-3151
Fax: 847-639-3184
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 5:30pm
Tuesday 5:30pm
Wednesday 5:30pm
Thursday 5:30pm
Friday 5:30pm
Saturday 3:00pm
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
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Lot Parking

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:

Fox River Grove
938 Il Route 22
2.0 miles away

Crystal Lake
301 E Congress Pkwy
2.3 miles away

Algonquin East
1420 E Algonquin Rd
2.4 miles away

Algonquin
801 W Algonquin Rd
2.7 miles away

Reviews

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Our priority package ships each week on Wednesday. We have not received package to date. Also, it is "Priority" mail. Why does it take 3-6 days for delivery.? We pay good money for this service and it is bad this year. We should receive package Friday or no later than Saturday. This is a joke, More like Mondays and this week, NOTHING>
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I just found out they've been delivering Time sensitive mail to my canceled long ago po box. I have missed court dates...I have lost my # in line for very important matters..I have lost insurance . I just had surgery and have another one next month.which aren't covered now. I have been treated like a loser by certain agencies who have said...We sent you a letter, I don't know what to tell you. The only reason I found all this out was because the other day I went in with 2 pieces of mail that were not forwarded from previous address & I asked if there's a date they stop using that yellow forward sticker..clerk said, hang on a minute, I recall your po box.I said what, oh, I canceled and returned keys months ago , what about it. he came back with a giant bag full of my mail.
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I'm wondering why my package was re-routed to Des Moines, while it was in route to my house in Cary, IL. The tracking slip said it was 'in route at 4:39 (about right for my mail man) and then suddenly it was set up to be re-routed and started a trek to Des Moines, where it is today...2 days before Christmas...guess no gift for me. It seems like the mailperson sent my gift some where else.
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Cary post office employee Mike at first station is so pleasant and helpful He stayed past his break time to help me finish up packaging and mail. He's always kind and patient unlike some of your other people. Thank you Mike. Keep up the good work.
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What is the mail man doing it's 6:40 pm and no mail this is happing all the time why. Would you like your mail this late at night.
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I see the mail came 7:25pm. What is going on with this post office and how it's ran
• Replied to Jim Lynch

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Can you tell me why the mail is so late today at 7:00 pm . I've never seen mail so bad and you just don't care. This is a Gov. Place and you would think the post office could do a better job
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Again we get are mail from 5:15 - 6:30 and this happens every day. Do I have to protest and get names so the mail come before four a clock. I had a letter from Chicago that took four days
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Mail is late ( 6:15 Monday ) it's late a lot . Can't they start at are street
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