According to the United States Census Bureau, the town has a total area of 66.8 km² (25.8 mi²). 47.4 km² (18.3 mi²) of it is land and 19.5 km² (7.5 mi²) of it (29.14%) is water. In the American Heritage Dictionary, 4th Edition, there is a picture of the Camden harbor next to the definition of the word harbor.