21120 Post Office

Find 21120 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.


Maryland Line Post Office 21400 York Road Parkton MD 21120 410-343-3064


Parkton Post Office 645 Happy Ln Parkton MD 21120 410-357-9255

White Hall Post Office 1415 Weisburg Road White Hall MD 21161 3.0 miles from 21120 410-357-9886

Monkton Post Office 16944 York Road Monkton MD 21111 3.9 miles from 21120 410-357-8869

Freeland Post Office 21600 New Freedom Road Freeland MD 21053 5.2 miles from 21120 410-357-9969

New Freedom Post Office 5 South Broad Street New Freedom PA 17349 6.6 miles from 21120 717-235-2100

Sinnamahoning Post Office 186 North 2nd Street New Freedom PA 17349 6.6 miles from 21120 814-546-2014

Shrewsbury Post Office 50 Constitution Avenue Shrewsbury PA 17361 7.4 miles from 21120 717-235-3012

Railroad Post Office 14 E Main St Ofc Railroad PA 17355 7.9 miles from 21120 717-235-4421

Butler Post Office 14921 Falls Road Butler MD 21023 8.2 miles from 21120 410-472-0310

Sparks Glencoe Post Office 14800 York Road Sparks MD 21152 8.2 miles from 21120 410-472-0706

Stewartstown Post Office 18 North Main Street Stewartstown PA 17363 8.7 miles from 21120 717-993-6288

Hampstead Post Office 4005 Houck Avenue Hampstead MD 21074 9.8 miles from 21120 410-374-3486

Upperco Post Office 5420 Arcadia Avenue Upperco MD 21155 10.4 miles from 21120 410-374-9404

Phoenix Post Office 14320 Jarrettsville Pike Phoenix MD 21131 10.7 miles from 21120 410-666-0692

New Park Post Office 44 Carea Road New Park PA 17352 10.8 miles from 21120 717-382-4112

Glenville Post Office 8142 Blooming Grove Road Glenville PA 17329 10.8 miles from 21120 717-235-4449

Jarrettsville Post Office 3713 Federal Hill Road Jarrettsville MD 21084 10.9 miles from 21120 410-692-0972

Glen Rock Post Office 201 Church Street Glen Rock PA 17327 10.9 miles from 21120 717-235-1546

Cockeysville Hunt Valley Post Office 115 Wight Avenue Cockeysville MD 21030 11.0 miles from 21120 410-771-0783

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.