New London County is a county in the southeastern corner of Connecticut and comprises the Norwich-New London, Connecticut Metropolitan Statistical Area, which is also included in the Hartford-East Hartford, Connecticut Combined Statistical Area. There is no county government and no county seat, as is the case with all eight of Connecticut's counties; towns are responsible for all local government activities, including fire and rescue, snow removal, and schools.
Conning Towers Nautilus Park is a census-designated place (CDP) in the town of Groton in New London County, Connecticut, United States. The population was 9,828 at the 2010 census. The statistical area consists of the portion of the town in the vicinity of Route 12 and includes Naval Submarine Base New London.
Ledyard is a Town in New London County, Connecticut, United States, located along the Thames River. The town is named after Colonel William Ledyard, a Revolutionary War officer who was killed at the Battle of Groton Heights. The town is part of the Southeastern Connecticut Planning Region. The population was 15,413 at the 2020 census. The Foxwoods Resort Casino, owned and operated by the Mashantucket Pequot Tribe, is located in the northeastern section of Ledyard, on the reservation owned by the tribe.
Long Hill is a census-designated place (CDP) in the town of Groton in New London County, Connecticut, United States. The population was 4,205 at the 2010 census.
Mystic is a village and census-designated place (CDP) in Groton and Stonington, Connecticut.
Old Mystic is a village and census-designated place (CDP) located in the town of Groton, Connecticut. The population was 3,554 at the 2010 census.
Oxoboxo River is a census-designated place (CDP) in the town of Montville in New London County, Connecticut, United States. The population was 2,938 at the 2000 census, 3,165 at the 2010 census, and 2,955 at the 2020 census. The statistical area encompasses the town center of Montville, as well as the adjacent villages of Palmertown and Uncasville. The name of the statistical area is from the river of the same name running through the CDP.
Pawcatuck is a village and census-designated place (CDP) in the town of Stonington which is located in New London County, Connecticut. The population was 5,624 at the 2010 census. It is located across the Pawcatuck River from Downtown Westerly, Rhode Island. The Mechanic Street Historic District of Pawcatuck is listed on the National Register of Historic Places and includes sites of shipbuilding, mills, and worker housing in a 147-acre (0.59 km2) area.
Poquonock Bridge is a census-designated place (CDP) and village in the town of Groton in New London County, Connecticut, United States. The population was 1,686 at the 2020 census.
Lakeville is a census-designated place (CDP) in Litchfield County, Connecticut, United States, close to Dutchess County, New York. It is within the town of Salisbury, but has its own ZIP Code (06039). As of the 2010 census, the population of Lakeville was 928, out of 3,741 in the entire town of Salisbury. The Hotchkiss School is located in Lakeville, and the Indian Mountain School is nearby.
Byram is a neighborhood/section and census-designated place (CDP) in the town of Greenwich in Fairfield County, Connecticut, United States. It had a population of 4,146 at the 2010 census, and a census-estimated population of 4,216 in 2018. An endcap of Connecticut's Gold Coast, Byram is the southernmost point in the town of Greenwich and the U.S. state of Connecticut. It is separated from Port Chester, Westchester County, New York, by the Byram River. Byram was once known as East Port Chester.
Gales Ferry is a census-designated place and village in the town of Ledyard, Connecticut, United States. It is located along the eastern bank of the Thames River. The community developed as a result of having a ferry to Uncasville located at this site, and from which the village was named. Gales Ferry was listed as a census-designated place for the 2010 Census, with a population of 1,162.
Noroton Heights is a village and census-designated place (CDP) in the town of Darien, Connecticut, United States. The community is located on Connecticut's Gold Coast. Located close to Long Island Sound, in the Connecticut panhandle, it is approximately 35 miles (56 km) northeast of Midtown Manhattan and immediately to the east of Stamford. As of the 2020 census, the CDP has a population of 3,116.
Baltic is the town center village of the town of Sprague, Connecticut, United States, and a census-designated place (CDP). The population of the CDP was 1,250 as of the 2010 census. The Sprague town hall is in Baltic. The Baltic Historic District is a historic district that was listed on the National Register of Historic Places in 1987, encompassing virtually the entire extent of the village.
Waterford is a census-designated place (CDP) comprising the primary village in the town of Waterford, New London County, Connecticut, United States. It is in the southeast part of the town, bordered to the east by the city of New London. U.S. Route 1 passes east–west through the community. As of the 2010 census, the CDP had a population of 2,887, out of 19,517 in the entire town of Waterford.
Colchester is a census-designated place (CDP) comprising the primary village and adjacent residential land in the town of Colchester, New London County, Connecticut, United States. It is in the east-central part of the town, with the Connecticut Route 2 expressway running through the south side of the community. As of the 2010 census, the CDP had a population of 4,781, out of 16,068 in the entire town of Colchester.
Clinton is a town in Middlesex County, Connecticut, United States. The town is part of the Lower Connecticut River Valley Planning Region. The population of the town was 13,185 at the 2020 census. The town center along the shore line was listed as a census-designated place (CDP) by the U.S. Census Bureau in the 2020 census.
Greenwich is a census-designated place (CDP) in Fairfield County, Connecticut, United States. It is one of several CDPs within the town of Greenwich and corresponds to the historic municipal center of the town and surrounding residential and commercial areas. As of the 2010 census, the population of the Greenwich CDP was 12,942, out of 61,171 in the entire town.
Rock Ridge is a census-designated place (CDP) in the town of Greenwich, Fairfield County, Connecticut, United States. It is in the western part of the town, just 1 mile (2 km) east of the New York state border. Rock Ridge was first listed as a CDP prior to the 2020 census.
Indian Field is a census-designated place (CDP) in the town of Greenwich, Fairfield County, Connecticut, United States. It is in the southern part of the town, on a peninsula between Indian Harbor to the west and Cos Cob Harbor to the east. It extends south into Captain Harbor, an inlet of Long Island Sound, and it extends north as far as U.S. Route 1. Interstate 95 crosses the CDP, with access from Exit 4.
United States 
