Portland Post Office

Find Portland Maine 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.


Downtown Station Post Office 400 Congress Street Portland ME 04101 207-761-0267


Peaks Island Post Office 66 Island Avenue Portland ME 04108 207-766-2912

Portland Post Office 125 Forest Avenue Portland ME 04101 207-871-8519

Station A Post Office 622 Congress Street Portland ME 04101 207-871-8437

South Portland Post Office 15 Cottage Road South Portland ME 04106 3.4 miles from Portland 207-871-8451

Long Island Post Office 280 Island Avenue Long Island ME 04050 4.0 miles from Portland 207-766-3367

Cliff Island Post Office 11 Sunset Rd Unit 1 Cliff Island ME 04019 5.8 miles from Portland 207-766-2051

Chebeague Island Post Office 24 Niblic Circle Chebeague Island ME 04017 7.6 miles from Portland 207-846-5820

Scarborough Post Office 31 Gorham Road Scarborough ME 04074 8.0 miles from Portland 207-883-6154

Westbrook Post Office 775 Main Street Westbrook ME 04092 9.3 miles from Portland 207-871-8437

Bailey Island Post Office 2120 Harpswell Island Road Harpswell ME 04003 11.9 miles from Portland 207-833-5211

Yarmouth Post Office 36 Forest Falls Drive Yarmouth ME 04096 11.9 miles from Portland 207-846-4211

Cumberland Center Post Office 1 Farwell Avenue Cumberland Center ME 04021 12.0 miles from Portland 207-829-3661

Old Orchard Beach Post Office 2 Cascade Road Old Orchard Beach ME 04064 12.3 miles from Portland 207-934-4401

Gorham Post Office 1 Post Office Sq Gorham ME 04038 13.2 miles from Portland 207-839-3591

Orrs Island Post Office 1729 Harpswell Island Road Harpswell ME 04066 13.6 miles from Portland 207-833-6278

South Freeport Post Office 95 South Freeport Road Freeport ME 04032 13.6 miles from Portland 207-865-6578

East Baldwin Post Office 213 Pequawket Trl ME 04024 14.1 miles from Portland 207-787-2544

Harpswell Post Office 1212 Harpswell Neck Rd ME 04079 14.1 miles from Portland 207-833-5526

South Windham Post Office 57 Main Street Windham ME 04062 14.1 miles from Portland 207-892-6011

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.