20878 Post Office

Find 20878 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.


Diamond Farms Post Office 23 Firstfield Road Gaithersburg MD 20878 301-208-3735


Kentlands Post Office 618 Center Point Way Gaithersburg MD 20878 301-869-4866

Gaithersburg Post Office 21 South Summit Avenue Gaithersburg MD 20877 3.6 miles from 20878 301-208-3701

Washington Grove Post Office 111 Washington Grove Lane Washington Grove MD 20880 4.2 miles from 20878 301-948-5009

Suburban Window Scv Post Office 16501 Shady Grove Road Gaithersburg MD 20898 4.3 miles from 20878 301-670-6085

Germantown Post Office 12774 Wisteria Drive Germantown MD 20874 4.4 miles from 20878 301-428-0460

Montgomery Village Post Office 10079 Stedwick Road Montgomery Village MD 20886 4.6 miles from 20878 301-208-3716

Rockville Post Office 500 North Washington Street Rockville MD 20850 5.4 miles from 20878 301-762-5802

Derwood Post Office 17533 Redland Road Derwood MD 20855 6.1 miles from 20878 301-527-1103

Boyds Post Office 15300 Barnesville Road Boyds MD 20841 6.2 miles from 20878 301-972-9527

Potomac Post Office 10221 River Road Potomac MD 20854 6.8 miles from 20878 301-983-4671

Twinbrook Post Office 2001 Veirs Mill Road Rockville MD 20851 7.6 miles from 20878 301-762-8536

Pike Post Office 143 Rollins Avenue Rockville MD 20852 7.7 miles from 20878 301-231-5973

Clarksburg Post Office 22505 Gateway Center Drive Clarksburg MD 20871 8.0 miles from 20878 301-540-0856

Westlake Post Office 10421 Motor City Drive Bethesda MD 20817 8.2 miles from 20878 301-767-1742

Great Falls Post Office 10001 Georgetown Pike Great Falls VA 22066 8.3 miles from 20878 703-757-0316

Laytonsville Post Office 6830 Olney Laytonsville Road Laytonsville MD 20882 8.7 miles from 20878 301-208-3736

Poolesville Post Office 19820 Fisher Avenue Poolesville MD 20837 9.1 miles from 20878 301-605-0544

White Flint Mall Post Office 11301 Rockville Pike Kensington MD 20895 9.1 miles from 20878 301-230-1276

Leisure World Finance Post Office 3802 International Drive Silver Spring MD 20906 9.4 miles from 20878 301-438-1009

About Post Offices

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.