Find St. Mary's 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.
Abell Post Office 21388 Abell Road Abell MD 20606 301-769-2262
Avenue Post Office 21535 Colton Point Road Avenue MD 20609 301-769-2263
Bushwood Post Office 22840 Bushwood Road Bushwood MD 20618 301-769-2264
California Post Office 22576 Macarthur Boulevard California MD 20619 301-863-9506
Callaway Post Office 20293 Piney Point Road Callaway MD 20620 301-994-1183
Chaptico Post Office 25749 Budds Creek Road Chaptico MD 20621 301-884-4334
Charlotte Hall Post Office 29948 Three Notch Road Charlotte Hall MD 20622 301-884-3050
Clements Post Office 24015 Colton Point Road Clements MD 20624 301-769-4548
Coltons Point Post Office 20254 Colton Point Road Coltons Point MD 20626 301-769-3853
Compton Post Office 22173 Bayside Road Compton MD 20627 301-475-9354
Dameron Post Office 17679 Three Notch Road Dameron MD 20628 301-872-5461
Drayden Post Office 18552 Cherryfield Road Drayden MD 20630 301-994-0430
Great Mills Post Office 20210 Point Lookout Road Great Mills MD 20634 301-994-2240
Helen Post Office 29915 Point Lookout Road Helen MD 20635 301-884-5403
Hollywood Post Office 24351 Mervell Dean Road Hollywood MD 20636 301-373-5215
Leonardtown Post Office 22735 Washington Street Leonardtown MD 20650 301-475-9781
Lexington Park Post Office 21745 South Coral Drive Lexington Park MD 20653 301-862-2380
Loveville Post Office 27780 Point Lookout Road Loveville MD 20656 301-475-5243
Mechanicsville Post Office 28948 Three Notch Road Mechanicsville MD 20659 301-884-3013
Morganza Post Office 39600 Doctor Johnson Road Morganza MD 20660 301-475-9858
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.
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.
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.