Calvert County Post Office

Find Calvert 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.


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


Broomes Island Post Office 8320 Broomes Island Road Broomes Island MD 20615 410-586-1728

Chesapeake Beach Post Office 7905 Bayside Road Chesapeake Beach MD 20732 410-257-6180

Dowell Post Office 14515 Dowell Road Lusby MD 20657 410-326-2135

Dunkirk Post Office 10383 Southern Maryland Boulevard Dunkirk MD 20754 301-855-5384

Huntingtown Post Office 4020 Old Town Road Huntingtown MD 20639 410-535-9633

Lusby Post Office 11575 Lusby Lane Lusby MD 20657 410-326-4406

North Beach Post Office 9132 Bay Avenue North Beach MD 20714 410-257-6328

Owings Post Office 9440 Old Solomons Island Road Owings MD 20736 301-812-2652

Port Republic Post Office 3000 Saint Leonard Road Port Republic MD 20676 410-586-0580

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

Saint Leonard Post Office 4244 Saint Leonard Road St. Leonard MD 20685 410-586-0688

Solomons Post Office 13946 H G Trueman Road Solomons MD 20688 410-326-3193

Sunderland Post Office 6401 Southern Maryland Boulevard Sunderland MD 20689 410-535-9633

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.