Frederick County Post Office

Find Frederick 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.


Adamstown Post Office 5537 Mountville Road Adamstown MD 21710 301-874-5429


Braddock Heights Post Office 4707 Schley Avenue Braddock Heights MD 21714 301-371-5998

Brunswick Post Office 315 Brunswick Street Brunswick MD 21716 301-834-9944

Buckeystown Post Office 4001 Buckeystown Pike Frederick MD 21704 301-874-5294

Burkittsville Post Office 8 East Main Street Burkittsville MD 21718 301-834-9592

College Estates Post Office 1301 West 7th Street Frederick MD 21702 301-662-6115

Emmitsburg Post Office 305 South Seton Avenue Emmitsburg MD 21727 301-447-2655

Frederick Post Office 201 East Patrick Street Frederick MD 21701 301-662-2131

Jefferson Post Office 3702 Jefferson Pike Jefferson MD 21755 301-473-8484

Libertytown Post Office 11941 Main Street Frederick MD 21701 301-898-7156

Middletown Post Office 7227 Hollow Road Middletown MD 21769 301-371-6880

Monrovia Post Office 4411 Green Valley Road Monrovia MD 21770 301-865-5432

Myersville Post Office 1 Wolfsville Road Myersville MD 21773 301-293-1180

New Market Post Office 168 West Main Street New Market MD 21774 301-865-3333

Point Of Rocks Post Office 1597 Bowis Drive Point of Rocks MD 21777 301-874-2131

Rocky Ridge Post Office 13516 Motters Station Road Rocky Ridge MD 21778 301-271-4920

Sabillasville Post Office 17235 Sabillasville Road Sabillasville MD 21780 301-241-3875

Thurmont Post Office 110 Water Street Thurmont MD 21788 301-271-2226

Tuscarora Post Office 5709 Tuscarora Road Tuscarora MD 21790 301-874-2303

Walkersville Post Office 7 East Frederick Street Walkersville MD 21793 301-845-8342

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.