Katy Annex Post Office

1331 Pin Oak Rd, Katy, TX 77494

Contact Numbers

Phone: 281-574-1401
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 3:00pm
Sunday Closed

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

  • 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:

Katy Finance
5701 4th St
0.7 mile away

20180 Park Row Dr
3.6 miles away

8055 Fm 359 Rd S
4.5 miles away

211 Baker Rd
4.7 miles away


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Horrible carrier at Katy Annex!!! I have had them "lose"& "mis-deliver" so many times in the past 8 years I have lived here it is unreal! I am constanly getting other peoples packages and never getting mine when it shows as delivered in tracking. Filing claims does nothing, Calling and making complaints does nothing. They don't care about the fact that you lost money or that someone is getting paid to do a job they aren't doing. HORRIBLE!


I called the Katy Annex Post Office today 12/7/2018 at 4:20 PM. They are supposed to be open until 5:00 PM on Fridays. After listening to all the different options, I waited patiently to talk to a actual person. After ringing a bunch of times, the phone went from ringing to the fast ringing sound. I have a package that is supposedly stuck at the North Houston distribution center but the phone number there is discontinued. I can't believe how inefficient the USPS is considering how long you have been in business!


Every time I have received packages out of Katy, the tracking information does not show up. Currently, The office received a package for shipping on Sep 04, 2018. As of Sep 10,2018 according to USPS tracking it is still in Katy. What the heck is going on that they can't get the package moving, or, if it is, show the most recent location.


Thank you Ms. Jones, for going the extra mile. I had neglected to put a street name on my order. Contacted Ms Jones, she tracked down my package, corrected my mistake and got my package to me. Professional, kind and understanding. Thank you@the Katy annex!


Can you explain why packages that come to me is left at my mailbox instead of delivered to my apartment? I have 4 packages of medicine left in front of my mailbox stolen.


I would like to know where is my mailbox address . someone just delivered a box to my mailbox. I don't have a key . I just moved it. Cheers, Remy

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