21520 Post Office

Find 21520 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.


Accident Post Office 103 South Street Accident MD 21520 301-746-8420


Bittinger Post Office 11357 Bittinger Road Bittinger MD 21522 4.4 miles from 21520 301-245-4460

Mc Henry Post Office 1914 Deep Creek Drive McHenry MD 21541 5.5 miles from 21520 301-387-5902

Friendsville Post Office 836 1st Avenue Friendsville MD 21531 6.2 miles from 21520 301-746-5985

Addison Post Office 7337 National Pike Addison PA 15411 8.6 miles from 21520 814-395-5221

Grantsville Post Office 159 Main Street Grantsville MD 21536 9.2 miles from 21520 301-895-5608

Markleysburg Post Office 173 Main Street Markleysburg PA 15459 11.1 miles from 21520 724-329-4494

Springs Post Office 1740 Springs Road Springs PA 15562 11.1 miles from 21520 814-662-2690

Swanton Post Office 3320 Swanton Road Swanton MD 21561 12.0 miles from 21520 301-387-6425

Confluence Post Office 512 Hugart Street Confluence PA 15424 13.3 miles from 21520 814-395-3113

Salisbury Post Office 96 Grant Street Meyersdale PA 15552 14.7 miles from 21520 814-662-4266

Fort Hill Post Office 414 Fort Hill Road Fort Hill PA 15540 14.8 miles from 21520 814-395-3451

Boynton Post Office 102 Post Office Street Boynton PA 15532 15.9 miles from 21520 814-662-4592

Oakland Post Office 22 South 2nd Street Oakland MD 21550 15.9 miles from 21520 301-334-3151

Bloomington Post Office 35 North Hamill Avenue Bloomington MD 21523 15.9 miles from 21520 301-359-0444

Mountain Lake Park Post Office 1325 Maryland Highway Oakland MD 21550 16.3 miles from 21520 301-334-9550

Barton Post Office 19112 South Railroad Street Barton MD 21521 16.5 miles from 21520 301-463-5759

Markleton Post Office 1099 Markleton School Road Markleton PA 15551 16.7 miles from 21520 814-926-2326

Westernport Post Office 72 Main Street Westernport MD 21562 16.7 miles from 21520 301-359-9261

Piedmont Post Office 25 Ashfield Street Piedmont WV 26750 16.8 miles from 21520 304-355-2066

About Post Offices

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.