Southwest Carrier Annex Post Office

3285 Express Ct, Lansing, MI 48910

Contact Numbers

Phone: 517-272-0684
Fax: 517-272-0698
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Last Collection Times

Monday 3:00pm
Tuesday 3:00pm
Wednesday 3:00pm
Thursday 3:00pm
Friday 3:00pm
Saturday 3:00pm
Sunday Closed

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

  • Business Line
  • Pickup Accountable Mail
  • Pickup Hold Mail

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:

Downtown Lansing
315 W Allegan St Ste a
1.5 miles away

Delta Branch
5208 W Saginaw Hwy
2.7 miles away

Delta Carrier Annex
6101 W Michigan Ave
2.9 miles away

2190 Aurelius Rd
2.9 miles away


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The worst mailing system I ever had to deal with ! They constantly loose my mail , the neighborhood has to constantly deliver correct mail to the correct address. They lost my ID that I was suppose to get from Secretary state , i had to renew for another one and pay the fee to renew ! Not kool !!!!


The service is pure garbage. I don't receive my mail, but I receive other peoples mail. Tried calling, and the lady I spoke with just cut me off, and put me on hold. I'm not the only one, my neighbors have the same exact problems.


The person I spoke to about a shipment #940011699000218517758 was a nice woman, don't recall her name. I still have not received the item I ordered for my grandson's 8th birthday from Hella Slingshots. The shipment was accepted at 10:26 p.m. 10/31/17 at San Francisco, CA and arrived at USPS Burlingame CA 11:41 p.m. November 2, 20 days ago it notes in transit to destination in Lansing MI. Will someone please check to see where the package is and let me know when it will hopefully arrive. Thank you, Marlinda Lowery

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