The York Historic District encompasses the historic village center of York, Maine, one of the oldest communities in the state. The expansive 1,700-acre (690 ha) district includes the oldest church in Maine, built by its oldest congregation in 1747, and the Old York Gaol, a National Historic Landmark that is one of the oldest public buildings in the United States. The district was listed on the National Register of Historic Places in 1973.
The Kennebunkport Historic District encompasses most of the village center of Kennebunkport, Maine. It includes the town's highest concentration of historic architecture, with many buildings from the late 18th and early 19th century, when Kennebunkport was at its height as a shipping and shipbuilding center. The district was added to the National Register of Historic Places on May 6, 1976.
The Main Street Historic District encompasses the historic commercial center of Damariscotta, Maine. Although the community was settled in the 18th century, most of its downtown area dates to the second half of the 19th century due to an 1845 fire. Lining Main Street east of the Damariscotta River, the downtown has a well-preserved collection of commercial, residential, and civic structures from the period. The district was added to the National Register of Historic Places in 1979, and enlarged in 2001.
Stroudwater Historic District is a historic district in the Stroudwater neighborhood of Portland, Maine. The district encompasses an important early village in the Portland area, significant as a shipbuilding and mill site established by Thomas Westbrook in 1727. The district was added to the National Register of Historic Places in 1973.
The Exeter Waterfront Commercial Historic District encompasses the historic commercial and residential waterfront areas of Exeter, New Hampshire. The district extends along the north side of Water Street, roughly from Main Street to Front Street, and then along both sides of Water and High streets to the latter's junction with Portsmouth Street. It also includes properties on Chestnut Street on the north side of the Squamscott River. This area was where the early settlement of Exeter took place in 1638, and soon developed as a shipbuilding center. The district was listed on the National Register of Historic Places in 1980. It was enlarged in 1986 to include the mill complex of the Exeter Manufacturing Company on Chestnut Street.
The Calais Residential Historic District encompasses the town's best collection of well-preserved 19th-century residences in Calais, Maine. Located on Calais Street and Main Street, the district includes twenty properties developed between the early 19th century and 1900. It was listed on the National Register of Historic Places in 1994.
The Kennebunk Historic District encompasses a large portion of the historic town center of Kennebunk, Maine. Established in 1736, the district includes a significant number of fairly high-style houses from the late 18th and early 19th centuries, when Kennebunk was at its height as a shipbuilding and maritime shipping center. The district was listed on the National Register of Historic Places in 1974.
The Belfast Historic District encompasses a large portion of the city center of Belfast, Maine, representing one of Maine's largest concentrations of pre-Civil War architecture, as well as a rich collection of commercial architecture of the late 19th and early 20th centuries. The district was listed on the National Register of Historic Places in 1986, with minor enlargements in 1993 and 1995.
The Camden Great Fire Historic District encompasses a significant portion of the central business district of the town of Camden, Maine, United States. Extending from the Camden Opera House north nearly to Atlantic Avenue, the area's buildings were almost all built in 1893, following a large fire in November 1892 that swept through the area. The district was listed on the National Register of Historic Places in 2007.
The Bath Historic District encompasses the historic 19th-century business district of Bath, Maine, along with an adjacent period neighborhood. The city has a long history as one of the nation's preeminent shipbuilding centers. The district was listed on the National Register of Historic Places in 1973.
The Chestnut Street Historic District encompasses a predominantly residential part of Camden, Maine, United States, which represents a cross-section of the town's architectural history, and of its transition from a shipping center to a summer resort community. The district extends south from the town common, along Chestnut Street, and then east to Dillingham Point. It was listed on the National Register of Historic Places in 1991.
The Main Street Historic District encompasses the historic commercial heart of Rockland, Maine. Located on several blocks of Main Street, the district has a well-preserved collection of commercial architecture dating from the mid-19th to early 20th centuries, the period of the city's height as a shipbuilding and industrial lime processing center. The district was listed on the National Register of Historic Places in 1978, and enlarged in 2012.
The Capitol Complex Historic District encompasses the principal historic elements of Maine's state administration complex at Capitol and State Streets in Augusta, Maine. Included in the district are the Maine State House, Capitol Park, The Blaine House, the Burton Cross Office Building, and a number of state-owned 19th century residences in the vicinity of the Blaine House. The district was listed on the National Register of Historic Places in 2001.
The Richmond Historic District encompasses the historic village center of Richmond, Maine. Established in the 17th century, the town reached its height of prosperity in the 19th century as a major shipbuilding center on the Kennebec River. The district was listed on the National Register of Historic Places in 1973.
The Rockland Residential Historic District encompasses a predominantly residential area west of the downtown of Rockland, Maine. With a history dating to the early 18th century, this area includes high quality examples of residential architecture, most dating to the period 1870-1920, and including several fine examples of municipal architecture. It was listed on the National Register of Historic Places in 1987.
The Rockport Historic District encompasses the historic town center of Rockport, Maine. Arrayed around the head of its harbor, the town's most significant period of development was in the mid 19th century, because of lime processing and other industries. The town has a well-preserved collection of Greek Revival and Italianate architecture from that period. The district was listed on the National Register of Historic Places in 1976.
The Thomaston Historic District encompasses much of the historic town center of Thomaston, Maine. With a settlement history dating to the 17th century, the town is now a showcase of 19th-century architectural styles up to the 1870s. The district extends for about 2 miles (3.2 km) along United States Route 1, and was listed on the National Register of Historic Places in 1974.
The Wiscasset Historic District is a 101-acre (41 ha) historic district that encompasses substantially all of the central village of Wiscasset, Maine. The district includes at least 22 contributing buildings and two other contributing sites, one being a cemetery whose oldest stone is from 1739. Located on the west bank of the Sheepscot River and settled in the 18th century, Wiscasset was a prominent harbor in Mid Coast Maine, and a major shipbuilding and merchant port, until the War of 1812 ended its prosperity. The village center includes fine examples of Federal period architecture, most built between about 1780 and 1820, including one National Historic Landmark, the Nickels-Sortwell House. The district was listed on the National Register of Historic Places in 1973.
The St. Johnsbury Main Street Historic District encompasses the historic civic and cultural center of the town of St. Johnsbury, Vermont. Organized along the town's Main Street, it includes high-quality architecture spanning the 19th and early 20th centuries, and includes the National Historic Landmark St. Johnsbury Athenaeum. Many of the district's buildings were designed by Lambert Packard, a prominent local architect. The district was listed on the National Register of Historic Places in 1975, and was enlarged slightly in 1976. It was subsumed into the larger St. Johnsbury Historic District in 1980.
The Portsmouth Downtown Historic District encompasses the historic urban core of Portsmouth, New Hampshire. With a history dating to the 17th century, Portsmouth was New Hampshire's principal seaport and the center of its economy for many decades, and the architecture of its urban center is reflective of nearly four centuries of history. The district is roughly L-shaped, radiating from the downtown Market Square area to South Street in the south and Madison and Columbia streets in the west, with more than 1,200 historically significant buildings. It was listed on the National Register of Historic Places in 2017. The district includes 35 previous listings on the National Register, and five National Historic Landmarks.
