Post Office

USPS Post Office Nassau Bay - Houston

Q: Is USPS Post Office Nassau Bay - Houston open on Saturday?

Yes, it is open on Saturday from 8:30 am to 12:00 pm.

18214 Upper Bay Rd, 77058 Houston

Directions 281-335-9357

Today's opening hours

This week's opening hours

Monday 8:30 am to 5:00 pm
Tuesday 8:30 am to 5:00 pm
Wednesday 8:30 am to 5:00 pm
Thursday 8:30 am to 5:00 pm
Friday 8:30 am to 5:00 pm
Saturday 8:30 am to 12:00 pm
Sunday Closed

Opening hours updated on 11/07/2026

Report a change

This Post Office at a glance

Opening hours of USPS Post Office Nassau Bay - Houston: Monday to Friday from 8:30 am to 5:00 pm, Saturday from 8:30 am to 12:00 pm; closed Sunday.

Opening hours a week: 46h; Opening hours a week
Days open, Monday to Saturday: 6/7; Days open, Monday to Saturday
Earliest opening, Monday to Saturday: 8:30 am; Earliest opening, Monday to Saturday
Latest closing, Monday to Friday: 5:00 pm; Latest closing, Monday to Friday
Open all day: No break; Open all day

In Houston, it is the 2nd of the 2 Post Offices by opening hours (46h a week, 52h 45m on average).
1 of the 2 Post Offices in Houston opens on Saturday afternoon, but not this one.

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: 15

Business Reply Mail® Account Balance
Business Reply Mail New Permit
Burial Flags
Call Referral
Duck Stamps
Gift Card Services
Greeting Card Services
Global Express Guaranteed®
Label Broker®
Money Orders (Domestic)
Money Orders (Inquiry)
Pickup Accountable Mail
Pickup Hold Mail
Priority Mail International®
PO Box Online

Parking: Lot Parking Available[/title][title]Contacts 3

Phone support: 1-800-ASK-USPS® (800-275-8777)
TTY: 877-889-2457
Phone: 281-335-9357

PO Box Delivery 6

Monday: 09:30
Tuesday: 09:30
Wednesday: 09:30
Thursday: 09:30
Friday: 09:30
Saturday: 09:30

Last Collection 6

Monday: 17:15
Tuesday: 17:15
Wednesday: 17:15
Thursday: 17:15
Friday: 17:15
Saturday: 15:00

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.

All postage rates Track an item

Address and directions

18214 Upper Bay Rd
77058 Houston

Google Maps Apple Maps Waze

Open
Closing soon
Closed
Opening hours not confirmed
This address

Practical information

Type: Post OfficeA United States Postal Service Post Office: stamps, sending and collecting letters and packages, and the USPS counter services.
Address: 18214 Upper Bay Rd, 77058 Houston
State: Texas
Official website: usps.com

Good to know

USPS Post Office Nassau Bay - Houston is in Houston, at 18214 Upper Bay Rd. It opens 6 days a week, Saturday included.

When it is closed, the nearest other offices are USPS Post Office Cpu Ace Hardware Clear Lake (2.1 mi) and USPS Post Office Cpu Kilgores (2.2 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 Nassau Bay - Houston open on Saturday?

Yes It is open on Saturday from 8:30 am to 12:00 pm.

Is USPS Post Office Nassau Bay - Houston open on Sunday?

No It is closed on Sunday.

What time does USPS Post Office Nassau Bay - Houston close?

It closes Monday to Friday at 5:00 pm and Saturday at 12:00 pm.

Is there a cash machine?

This Post Office does not list a cash machine.

Other offices in Houston

USPS Post Office Cpu Ace Hardware Clear Lake

All offices in Houston