Posted on February 18, 2019 February 18, 2019 by WebsiteYellowPages.com US Post Office 1 2 3 4 50.000 LocationsMaryland Bookmark Contact Information Business Name US Post Office Address 168 W Main St, Maryland 21774-6233 Phone Number 3863641412 Fax Number 3018653333 Website http://www.usps.com Post navigationPrevious post: White Marsh Elementary SchoolNext post: George WF Mc Mechen Sr High