Mount Desert Island Postal History

a project of
V. F. Thomas Co. - P. O. Box 84 - Hulls Cove, Maine  04644

(updated 8 October 2023)

Welcome to the Mount Desert Island Postal History website.

The goal of this website is to provide information about the postal history of Mount Desert Island from the beginning of the “Statehood Period” (1820 March 15) to date. These pages include images of the earliest and latest postmarks of each given style found from each town that has or had a post office, images of post offices, images of postal routes, and the history of each post office.

How to contribute to this website: Scanned images of Mount Desert Island’s covers/postmarks, post offices, postal route maps, and anything else related to MDI’s postal history are welcome. You can e-mail them to or send items on loan to “Mount Desert Island Postal History Project” at the address at the top of this page. And, of course, please report all errors. Your comments and suggestions are encouraged. Thank you for your help.

A little work by each of us will save a lot of work for all of us.

Below is an alphabetical list of Mount Desert Island’s towns. Click on any town name and you will be taken to the postal history page for that town.

Bar Harbor
Cranberry Isles
Mount Desert
Southwest Harbor