Westmoreland County Post Office

Find Westmoreland County Pennsylvania post offices and USPS mailing boxes. Post offices provide information on bulk mail services, domestic mail delivery, international shipping, change of address, mail forwarding, PO boxes, and passport services.


Adamsburg Post Office 184 Main Street Adamsburg PA 15611 724-523-4582


Alverton Post Office 459 Ruffsdale Alverton Road Alverton PA 15612 724-887-4008

Ardara Post Office 12889 Highway 993 Ardara PA 15615 724-863-6790

Armbrust Post Office 7855 Pennsylvania 819 Greensburg PA 15601 724-925-6424

Arnold Post Office 1740 5th Avenue New Kensington PA 15068 724-335-7120

Arona Post Office 2128 Main Street Arona PA 15617 724-446-7900

Bolivar Post Office 308 4th Street Bolivar PA 15923 724-676-5640

Bovard Post Office 3 Jefferson Avenue Greensburg PA 15601 724-836-0176

Bradenville Post Office 1303 High Street Bradenville PA 15620 724-539-3468

Claridge Post Office 3162 Main Street Claridge PA 15623 724-744-2002

Crabtree Post Office 2573 U.s. 119 Crabtree PA 15624 724-836-0260

Darragh Post Office 3206 Pennsylvania 136 Darragh PA 15625 724-446-7820

Delmont Post Office 48 Greensburg Street Delmont PA 15626 724-468-5236

Derry Post Office 101 East 1st Avenue Derry PA 15627 724-694-9241

Dilltown Post Office 7491 Highway 403 Seward PA 15954 814-446-6663

Donegal Post Office 154 Main Street Donegal PA 15628 724-593-7280

East Vandergrift Post Office 252 McKinley Avenue East Vandergrift PA 15629 724-568-2195

Forbes Road Post Office 344 Fire Station Road Forbes Road PA 15633 724-834-1315

Grapeville Post Office 2526 Newark Street Grapeville PA 15634 724-523-4600

Greensburg Post Office 238 South Pennsylvania Avenue Greensburg PA 15601 724-837-4187

What Change of Address options are available?

Customers can request a temporary or permanent Change of Address either online or in person at the Post Office using PS Form 3575. The online application for Change of Address has a $1.00 identity validation fee.

Is it possible to insure mail and items sent via the USPS?

Yes. Standard mail can be insured for up to $5,000 for an additional fee. Registered mail items can be insured for up to $50,000.

What is the USPS Office of Inspector General?

The Office of Inspector General (OIG) is a division within the USPS responsible for ensuring the integrity and accountability of the postal service. It conducts investigations to safeguard the postal system and performs audits and reviews.