Old Town is a city in Penobscot County, Maine, United States.

[2] The city's developed area is chiefly located on the relatively large Marsh Island, but its boundaries extend beyond it.

The Abenaki people called it Pannawambskek, meaning "where the ledges spread out," referring to rapids and drops in the river bed.

Nearly a century later after Great Britain took over French territory following its victory in the Seven Years' War, the area was settled by English pioneers in 1774.

Over time, the Penobscot village ceased to be called Old Town, and the name migrated to the much newer American settlement across the river.

The city's location along a series of rapids in the Penobscot River, near the head of tide just downstream in Bangor, made it an ideal location in the 1800s to marshal the water power for mills to process lumber from the millions of board feet of spruce and pine logs floated annually down the Penobscot.

French Island is the intermediate land mass between Milford and Old Town; it is connected on either side by a bridge.

The Census Bureau does not recognize Stillwater and counts that area as part of Old Town.

It borders the towns of Orono to the south, Glenburn to the west, Hudson to the northwest, Alton and Argyle Township to the north, and (separated by water) is near Milford east, and Bradley to the southeast.

This climatic region is typified by large seasonal temperature differences, with warm to hot (and often humid) summers and cold (sometimes severely cold) winters.

27.0% of all households were made up of individuals, and 10.7% had someone living alone who was 65 years of age or older.

29.1% of all households were made up of individuals, and 11.7% had someone living alone who was 65 years of age or older.