Castine Post Office (1817) 43 Main

Walking Tour of Castine

Castine Post Office (1817) 43 Main

Castine, Maine 04421, United States

Created By: Castine Historical Society

Point of Interest Details

Built as the Customs House, the oldest U.S. Post Office, continously in service since 1833.

This point of interest is part of the tour: Walking Tour of Castine


Leave a Comment



Download the App

Download the PocketSights Tour Guide mobile app to take this self-guided tour on your GPS-enabled mobile device.

iOS Tour Guide Android Tour Guide



Updates and Corrections

Please send change requests to