Today
Today's opening hours
This week's opening hours
Retail
- Monday 8:00 am to 12:00 pm
- Tuesday 8:00 am to 12:00 pm
- Wednesday 8:00 am to 12:00 pm
- Thursday 8:00 am to 12:00 pm
- Friday 8:00 am to 12:00 pm
- Saturday 8:00 am to 12:00 pm
- Sunday Closed
Other opening hours
Call Referral
- Monday to Saturday
- 8:00 am to 12:00 pm
- Sunday
- Closed
Lobby
- Monday to Saturday
- 12:01 am to 11:59 pm
- Sunday
- Closed
Pickup Services
- Monday to Saturday
- 8:00 am to 12:00 pm
- Sunday
- Closed
PO Box Access
- Monday to Saturday
- 12:01 am to 11:59 pm
- Sunday
- Closed
Opening hours updated on 11/07/2026
Report a changeThis Post Office at a glance
Opening hours of USPS Post Office Grindstone: Monday to Saturday from 8:00 am to 12:00 pm; closed Sunday.
- Opening hours a week
- 24h
- Opening hours a week
- Days open, Monday to Saturday
- 6/7
- Days open, Monday to Saturday
- Earliest opening, Monday to Saturday
- 8:00 am
- Earliest opening, Monday to Saturday
- Latest closing, Monday to Saturday
- 12:00 pm
- Latest closing, Monday to Saturday
- 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: 8
Parking 1
Contacts 3
PO Box Delivery 6
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
- Type
- Post OfficeA United States Postal Service Post Office: stamps, sending and collecting letters and packages, and the USPS counter services.
- Address
- 565 Grindstone Rd, 15442 Grindstone
- State
- Pennsylvania
- Official website
- usps.com
Good to know
USPS Post Office Grindstone is in Grindstone, at 565 Grindstone Rd. It opens 6 days a week, Saturday included.
When it is closed, the nearest other offices are USPS Post Office Brier Hill (2.3 mi) and USPS Post Office Chestnut Ridge (2.5 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 Grindstone open on Saturday?
Yes It is open on Saturday from 8:00 am to 12:00 pm.
Is USPS Post Office Grindstone open on Sunday?
No It is closed on Sunday.
What time does USPS Post Office Grindstone close?
It closes Monday to Saturday at 12:00 pm.
Is there a cash machine?
This Post Office does not list a cash machine.