Today
Today's opening hours
This week's opening hours
Call Referral
- Monday 10:00 am to 3:00 pm
- Tuesday 10:00 am to 3:00 pm
- Wednesday 10:00 am to 3:00 pm
- Thursday 10:00 am to 3:00 pm
- Friday 10:00 am to 3:00 pm
- Saturday 9:00 am to 12:00 pm
- Sunday Closed
Other opening hours
Carrier Call Referral
- Monday to Friday
- 9:00 am to 4:30 pm
- Saturday
- 9:00 am to 12:00 pm
- Sunday
- Closed
Pickup Services
- Monday to Friday
- 9:00 am to 4:30 pm
- Saturday
- 9:00 am to 12:00 pm
- Sunday
- Closed
Opening hours updated on 11/07/2026
Report a changeThis Post Office at a glance
Opening hours of USPS Post Office Katy Annex - Katy: Monday to Friday from 10:00 am to 3:00 pm, Saturday from 9:00 am to 12:00 pm; closed Sunday.
- Opening hours a week
- 28h
- Opening hours a week
- Days open, Monday to Saturday
- 6/7
- Days open, Monday to Saturday
- Earliest opening, Saturday
- 9:00 am
- Earliest opening, Saturday
- Latest closing, Monday to Friday
- 3:00 pm
- Latest closing, Monday to Friday
- Open all day
- No break
- Open all day
Special days ahead
Public holidays, closures and special opening hours over the next two months.
- Wednesday, November 11 Veterans Day Opening hours not confirmed
- Thursday, November 26 Thanksgiving Day Opening hours not confirmed
- Friday, December 25 Christmas Opening hours not confirmed
- Friday, January 1 New Year’s Day Opening hours not confirmed
Services
Services Available: 5
Parking 1
Contacts 3
Last Collection 6
Sending from this Post Office
- First-Class Mail from From $0.65 up to Postcards
- Shipping Services from From $7.90 up to USPS Ground Advantage (2–5 days)
Indicative rates subject to change by the postal operator.
- Open
- Closing soon
- Closed
- Opening hours not confirmed
- This address
Practical information
Good to know
USPS Post Office Katy Annex - Katy is in Katy, at 1331 Pin Oak Rd. It opens 6 days a week, Saturday included.
When it is closed, the nearest other offices are USPS Post Office Katy Finance - Katy (1.2 mi) and USPS Post Office Cpu Ace Cinco Ranch (4.0 mi).
The next public holiday is Veterans Day, Wednesday, November 11. Opening hours often change that day: check them before you go.
Frequently asked questions
Is USPS Post Office Katy Annex - Katy open on Saturday?
Yes It is open on Saturday from 9:00 am to 12:00 pm.
Is USPS Post Office Katy Annex - Katy open on Sunday?
No It is closed on Sunday.
What time does USPS Post Office Katy Annex - Katy close?
It closes Monday to Friday at 3:00 pm and Saturday at 12:00 pm.
Is there a cash machine?
This Post Office does not list a cash machine.