Prince Frederick Post Office

Find Prince Frederick 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.


Barstow Post Office 2485 Hallowing Point Road Prince Frederick MD 20678 410-535-1479


Prince Frederick Post Office 35 Duke Street Prince Frederick MD 20678 301-855-1742

Port Republic Post Office 3000 Saint Leonard Road Port Republic MD 20676 4.8 miles from Prince Frederick 410-586-0580

Huntingtown Post Office 4020 Old Town Road Huntingtown MD 20639 5.3 miles from Prince Frederick 410-535-9633

Benedict Post Office 7240 Benedict Avenue Benedict MD 20612 5.3 miles from Prince Frederick 301-274-3337

Saint Leonard Post Office 4244 Saint Leonard Road St. Leonard MD 20685 6.0 miles from Prince Frederick 410-586-0688

Aquasco Post Office 22503 Aquasco Road Aquasco MD 20608 7.8 miles from Prince Frederick 301-579-2273

Sunderland Post Office 6401 Southern Maryland Boulevard Sunderland MD 20689 8.3 miles from Prince Frederick 410-535-9633

Broomes Island Post Office 8320 Broomes Island Road Broomes Island MD 20615 8.7 miles from Prince Frederick 410-586-1728

Hughesville Post Office 15485 Prince Frederick Road Hughesville MD 20637 10.0 miles from Prince Frederick 301-274-3133

Chesapeake Beach Post Office 7905 Bayside Road Chesapeake Beach MD 20732 10.4 miles from Prince Frederick 410-257-6180

Charlotte Hall Post Office 29948 Three Notch Road Charlotte Hall MD 20622 10.6 miles from Prince Frederick 301-884-3050

Mechanicsville Post Office 28948 Three Notch Road Mechanicsville MD 20659 11.1 miles from Prince Frederick 301-884-3013

Owings Post Office 9440 Old Solomons Island Road Owings MD 20736 11.7 miles from Prince Frederick 301-812-2652

North Beach Post Office 9132 Bay Avenue North Beach MD 20714 11.8 miles from Prince Frederick 410-257-6328

Dunkirk Post Office 10383 Southern Maryland Boulevard Dunkirk MD 20754 12.8 miles from Prince Frederick 301-855-5384

Helen Post Office 29915 Point Lookout Road Helen MD 20635 13.2 miles from Prince Frederick 301-884-5403

Friendship Post Office 4 Friendship Road Friendship MD 20758 13.4 miles from Prince Frederick 301-855-2478

Bryantown Post Office 6425 Leonardtown Road Hughesville MD 20637 13.9 miles from Prince Frederick 301-274-3731

Morganza Post Office 39600 Doctor Johnson Road Morganza MD 20660 14.2 miles from Prince Frederick 301-475-9858

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.