Charles County Post Office

Find Charles County Maryland 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.


Bel Alton Post Office 9695 Bel Alton Newtown Road Bel Alton MD 20611 301-934-2678


Benedict Post Office 7240 Benedict Avenue Benedict MD 20612 301-274-3337

Bryans Road Post Office 6960 Indian Head Highway Bryans Road MD 20616 301-283-6460

Bryantown Post Office 6425 Leonardtown Road Hughesville MD 20637 301-274-3731

Cobb Island Post Office 17009 Cobb Island Road Cobb Island MD 20625 301-259-4159

Faulkner Post Office 9977 Faulkner Road Faulkner MD 20632 301-934-9331

Hughesville Post Office 15485 Prince Frederick Road Hughesville MD 20637 301-274-3133

Indian Head Post Office 4050 Indian Head Highway Indian Head MD 20640 301-743-3911

Ironsides Post Office 6045 Port Tobacco Road Indian Head MD 20640 301-743-7236

Issue Post Office 15800 Cobb Island Road Newburg MD 20664 301-259-2532

La Plata Post Office 100 Centennial Street La Plata MD 20646 301-934-8463

Marbury Post Office 4570 Bicknell Road Marbury MD 20658 301-753-8756

Mount Victoria Post Office 12085 Mount Victoria Road Newburg MD 20664 301-259-4637

Nanjemoy Post Office 9365 Beaver Dam Road Nanjemoy MD 20662 301-743-5029

Newburg Post Office 12179 Rock Point Road Newburg MD 20664 301-259-2527

Pomfret Post Office 8205 Marshall Corner Road Pomfret MD 20675 301-934-3117

Port Tobacco Post Office 8200 Port Tobacco Road Port Tobacco MD 20677 301-934-3229

Saint Charles Center Post Office 11110 Mall Circle Waldorf MD 20603 301-932-4349

Waldorf Post Office 150 Post Office Road Waldorf MD 20602 301-705-7288

Welcome Post Office 6204 Welcome Road Welcome MD 20693 301-934-3052

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.