Chatham Post Office

Find Chatham Massachusetts 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.


Chatham Post Office 802 Main Street Chatham MA 02633 508-945-6054


North Chatham Post Office 200 Orleans Road Chatham MA 02650 508-945-5560

South Chatham Post Office 2455 Main Street Chatham MA 02659 508-432-7491

West Chatham Post Office 1671 Main Street Chatham MA 02633 508-945-7231

Harwich Post Office 1484 South Orleans Road Harwich MA 02645 3.1 miles from Chatham 508-432-8473

South Harwich Post Office 944 Massachusetts 28 Harwich MA 02645 4.1 miles from Chatham 508-432-7219

South Orleans Post Office 403 South Orleans Road Brewster MA 02631 4.9 miles from Chatham 508-255-3879

Harwich Port Post Office 10 Post Office Sq Harwich Port MA 02646 5.3 miles from Chatham 508-430-6100

West Harwich Post Office 216 Route 28 Northwest Harwich MA 02671 7.2 miles from Chatham 508-432-3973

East Orleans Post Office 210 Main Street Orleans MA 02653 7.7 miles from Chatham 508-255-4078

Brewster Post Office 260 Underpass Road Brewster MA 02631 7.9 miles from Chatham 508-896-8377

Orleans Post Office 56 Main Street Orleans MA 02653 7.9 miles from Chatham 508-255-0464

Dennis Port Post Office 3 Mill Street Dennis Port MA 02639 8.6 miles from Chatham 508-398-4214

South Dennis Post Office 9 Market Place Dennis MA 02660 10.0 miles from Chatham 508-760-1362

Eastham Post Office 2365 State Highway Eastham MA 02642 10.7 miles from Chatham 508-255-0671

West Dennis Post Office 97 School Street West Dennis MA 02670 10.7 miles from Chatham 508-398-4292

East Dennis Post Office 1600 Main Street Dennis MA 02660 11.3 miles from Chatham 508-385-3400

South Yarmouth Post Office 1057 Route 28 South Yarmouth MA 02664 12.4 miles from Chatham 508-398-4385

North Eastham Post Office 50 Brackett Road Eastham MA 02642 12.6 miles from Chatham 508-255-5089

Dennis Post Office 788 Main Street Dennis MA 02638 12.6 miles from Chatham 508-385-6834

What is a Post Office?

A post office is a local branch of the United States Postal Service, where mail is received and dispatched to individuals and businesses in a given community. A post office usually has postal clerks who receive and process mail, and it's also the place from which mail carriers pick up mail they deliver on their local routes. The office handles USPS business, including mail and package sorting, delivery and forwarding, sales of stamps and other postal supplies, change-of-address requests, and other administrative functions.

In some small communities, the local post office may be located within a commercial business. In communities both large and small, a post office may serve as a local passport office at which passport applications are received and undergo initial processing.