Most of Connecticut's

river A river is a natural flowing watercourse, usually freshwater Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the ...

s flow into Long Island Sound and from there the waters mix into the

Atlantic Ocean The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth#Surface, Earth's surface and about 29% of its water surface area. It is known to separate the "Old World" of Afr ...

. A few extremely eastern rivers flow into

Block Island Sound Block Island Sound is a strait in the open Atlantic Ocean, approximately wide, separating Block Island from the coast of mainland Rhode Island. On the west, it extends to Montauk Point on the eastern tip of Long Island, as well as Plum Is ...

. The list is arranged by drainage basin from east to west, with respective tributaries indented from downstream to upstream under each larger stream's name.

By drainage basin (east to west)

Block Island Sound

* Pawcatuck River – easternmost CT river basin ** Shunock River **'' Ashaway River (Rhode Island)'' *** Green Fall River ** Wood River

Long Island Sound

* Mystic River **

Whitford Brook Whitford may refer to: Places * Electoral district of Whitford, Western Australia * Westfield Whitford City, shopping centre in Perth, Western Australia * Whitford, Alberta, Canada ** Whitford (provincial electoral district) * Whitford, Devon, Eng ...

* Poquonock River *

Thames River The River Thames ( ), known alternatively in parts as the River Isis, is a river that flows through southern England including London. At , it is the longest river entirely in England and the second-longest in the United Kingdom, after the ...

** Oxoboxo River **

Shetucket River The Shetucket River is a tributary of the Thames River, long,U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed April 1, 2011 in eastern Connecticut in the United States. It is formed at ...

*** Quinebaug River **** Pachaug River **** Blackwell Brook **** Moosup River ****

Five Mile River The Five Mile River is a river located in Connecticut's Northeast Corner and flows through the towns of Thompson, Putnam, and Killingly.The original Nipmuc name was ''Assawaga'', meaning "place between" or "halfway place". The Assawaga receive ...

****

Little River (Quinebaug River tributary) Little River may refer to several places: Australia Streams New South Wales * Little River (Dubbo), source in the Dubbo region, a tributary of the Macquarie River * Little River (Oberon), source in the Oberon Shire, a tributary of Coxs River (Ha ...

**** French River ***

Little River (Shetucket River tributary) The Little River is a river that runs through the towns of Hampton, Canterbury, Scotland, and Sprague, Connecticut. It begins at Hampton Reservoir in northern Hampton, CT and snakes its way down into the Shetucket River at the town borders of Nor ...

*** Merrick Brook **** Beaver Brook ***

Natchaug River The Natchaug River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed April 1, 2011 river in Windham and Tolland Counties in northeastern Connecticut. The name ''Natchaug'' comes from ...

****

Mount Hope River The Mount Hope River is a river in northeastern section of the U.S. state of Connecticut. The river is formed at the outlet of Morey Pond at the extreme northern end of Ashford, Connecticut, at the border of Union, Connecticut, and flows about ...

*****

Fenton River 300px, Fenton River along the Nipmuck Trail just north of CT Route 44 (UConn Forest) The Fenton River is a major water source for the University of Connecticut that runs through Mansfield, Storrs, and Willington, as well as small parts of W ...

****

Bigelow Brook Bigelow Brook is a river in northeastern Connecticut, flowing from Mashapaug Lake in Union to its confluence with the Still River in Eastford. Bigelow Brook is formed in Union, Connecticut at the outflow of Mashapaug Lake. After leaving the ...

**** Still River (Natchaug River tributary) *** Willimantic River **** Tenmile River **** Hop River ***** Skungamaug River **

Yantic River The Yantic River forms at the confluence of the Deep River, Sherman Brook, and Exeter Brook about east of Colchester, Connecticut. It runs for and flows into the Shetucket River in Norwich, forming the Thames River.U.S. Geological Survey. Na ...

* Niantic River *

Pattagansett River The Pattagansett River is a river located in the town of East Lyme, Connecticut, near the village of Niantic Niantic may refer to: * Niantic people, tribe of American Indians * Niantic, Inc., mobile app developer known for the mobile games ''Ingr ...

* Fourmile River * Threemile River *

Black Hall River Black Hall River is a river in the state of Connecticut, United States of America. It joins the Back River at Great Island in Old Lyme, where they enter Long Island Sound. The river is situated near the mouth of the Connecticut River. It has been de ...

* Connecticut River ** Back River ** Lieutenant River ** Falls River ** Eightmile River ** Deep River ** Salmon River ***

Moodus River Moodus is a village in the town of East Haddam, Connecticut, East Haddam, Connecticut, United States. The village is the basis of a census-designated place (CDP) of the same name. The population of the CDP was 1,982 as of the census of 2020. Hi ...

***

Blackledge River The Blackledge River is a tributary of the Salmon River which courses U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed April 1, 2011 through eastern Connecticut in the United States. R ...

***

Jeremy River The Jeremy River, named after Jeremy Adams, begins at a drainage just north of Holbrook Pond about east of Gilead, Connecticut and runs for to the Salmon River in Colchester, Connecticut.U.S. Geological Survey. National Hydrography Dataset high ...

Sumner Brook Sumner may refer to: Places Antarctica * Mount Sumner, a mountain in the Rare Range, Antarctica * Sumner Glacier, southern Graham Land, Antarctica Australia * Sumner, Queensland, suburb of Brisbane New Zealand * Sumner, New Zealand, seaside subu ...

***

Pameacha Creek Pameacha Creek is a stream in Middletown, Connecticut. See also *List of rivers of Connecticut Most of Connecticut's rivers flow into Long Island Sound and from there the waters mix into the Atlantic Ocean. A few extremely eastern rivers flow in ...

** Mattabesset River *** Coginchaug River ** Hockanum River *** Tankerhoosen River ** Park River – also known as Hog River and Little River *** North Branch Park River ***

South Branch Park River South is one of the cardinal directions or compass points. The direction is the opposite of north and is perpendicular to both east and west. Etymology The word ''south'' comes from Old English ''sūþ'', from earlier Proto-Germanic ''*sunþaz' ...

Podunk River The Podunk River is a stream in Hartford County, Connecticut. It is a tributary to the Connecticut River.''Hartford North CT'', 7.5 Minute Topographic Quadrangle, USGS, 1964 (1992 rev.) The stream headwaters arise at at an elevation of . The st ...

** Farmington River *** Pequabu River ****

Pequabuck River The Pequabuck River is a river, approximately 19 miles (30.6 km) in length, which rises in Litchfield County, Connecticut, and courses through neighboring Hartford County before emptying into the Farmington River in Farmington. The river ...

*** Nepaug River ****

Poland River Poland, officially the Republic of Poland, , is a country in Central Europe. Poland is divided into sixteen voivodeships and is the fifth most populous member state of the European Union (EU), with over 38 million people, and the ...

*** East Branch Farmington River ****

Hubbard River The Hubbard River, long,U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map , accessed April 1, 2011 is part of the Farmington River watershed. It flows through Connecticut and Massachusetts.

*** West Branch Farmington River **** Still River ***** Mad River ** Scantic River ***

Watchaug River Watchaug Pond is a kettle pond (lake) located in southern Rhode Island, in the town of Charlestown, Rhode Island, Charlestown. It is surrounded by the John Vincent Gormley 8-mile loop trail which was dedicated by Senator Jack Reed (Rhode Island po ...

* Patchogue River * Menunketesuck River *

Indian River (Clinton) Indian River may refer to: Rivers In Barbados * Indian River (Barbados) In Canada *Indian River (British Columbia), which enters Indian Arm to the north of North Vancouver *Indian River, a tidal flow east of Deer Island, New Brunswick *In Ontar ...

* Hammonasset River *

Neck River The neck is the part of the body on many vertebrates that connects the head with the torso. The neck supports the weight of the head and protects the nerves that carry sensory and motor information from the brain down to the rest of the body. In ...

East River The East River is a saltwater tidal estuary in New York City. The waterway, which is actually not a river despite its name, connects Upper New York Bay on its south end to Long Island Sound on its north end. It separates the borough of Que ...

* West River (Guilford) *

Branford River Branford may refer to: * Branford Boase Award, British literary award *Branford Marsalis Quartet, an American jazz band *Operation Branford, a British raid conducted in 1942 during WW2 Places * Branford, Connecticut, a town in the United States ...

* Farm River * Quinnipiac River ** Muddy River ** Tenmile River ** Eightmile River * Mill River * West River **

Sargent River Sargent or Sargents may refer to: People * Sargent (name), includes a list of people with the name Places *Sargent, California *Sargents, Colorado *Sargent, Georgia *Sargent, Scott County, Missouri *Sargent, Texas County, Missouri *Sargent, Nebr ...

Cove River The Cove River is a stream in New Haven County in the U.S. state of Connecticut. It rises in Orange and flows through West Haven before discharging into Long Island Sound at Sea Bluff Beach by Bradley Point. Dams along the river form the Maltby ...

* Oyster River *

Indian River (Milford) The Indian River is a stream in New Haven County in the U.S. state of Connecticut. It rises in Orange and flows through Milford before discharging into Long Island Sound at Gulf Pond. Bodies of water along the stream include Clark Pond and Roses ...

* Wepawaug River *

Housatonic River The Housatonic River ( ) is a river, approximately long,U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map , accessed April 1, 2011 in western Massachusetts and western Connecticut in the United S ...

** Farmill River ** Naugatuck River *** Mad River ** Halfway River **

Pomperaug River The Pomperaug River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed April 1, 2011 river in the US state of Connecticut. The two main tributaries to the Pomperaug are the Nonnewaug ...

***Nonnewaug River *** Weekeepeemee River **

Pootatuck River The Potatuck were a Native American tribe in Connecticut. They were related to the Paugussett people, historically located during and prior to the colonial era in western Connecticut. They lived in what is now Newtown, Woodbury and Southbury o ...

** Shepaug River *** Bantam River ***

Marshepaug River The Marshepaug River is a stream in the towns of Goshen and Litchfield in northwest Connecticut in the United States. The river rises near the southwest corner of Woodbridge Lake and then flows in a southwest direction through the Milton Cente ...

** Still River **

West Aspetuck River West or Occident is one of the four cardinal directions or points of the compass. It is the opposite direction from east and is the direction in which the Sun sets on the Earth. Etymology The word "west" is a Germanic word passed into some R ...

*** East Aspetuck River **

Rocky River Rocky River may refer to: Localities *Rocky River, Ohio, USA * Rocky River, New South Wales near Uralla, Australia Electorates *Electoral district of Rocky River (South Australia) Streams In Australia: * Rocky River (New South Wales) * R ...

** Ten Mile River **

Hollenbeck River Hollenbeck may refer to: Places in the United States * Hollenbeck Middle School, Los Angeles, California *Hollenbeck Park, Boyle Heights, Los Angeles, California *LAPD Hollenbeck Division, part of Los Angeles Police Department, California * Hollen ...

Blackberry River The Blackberry River is a westward-flowing river located entirely in the far northwest corner of the U.S. state of Connecticut. The river runs for through the towns of Norfolk and North Canaan, where it empties into the Housatonic River. The rive ...

*** Whiting River **

Konkapot River The Konkapot River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed April 1, 2011 river in southwestern Massachusetts and northern Connecticut. It is a tributary of the Housatonic Ri ...

Pequonnock River The Pequonnock River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed 2011-04-01. waterway in eastern Fairfield County, Connecticut. Its watershed is located in five communities, wi ...

* Ash Creek **

Rooster River Rooster River is a river in Fairfield County, Connecticut that lies on and serves as the border between Bridgeport and Fairfield.

* Mill River * Saugatuck River **

West Branch Saugatuck River West or Occident is one of the four cardinal directions or points of the compass. It is the opposite direction from east and is the direction in which the Sun sets on the Earth. Etymology The word "west" is a Germanic word passed into some R ...

** Aspetuck River ** Little River * Norwalk River ** Silvermine River *

Fivemile River Five Mile or 5 Mile can refer to: * Five Mile River, in Connecticut * Five Mile River (East Brookfield River), in central Massachusetts * Five Mile River, Nova Scotia, Canada * Five Mile Pond (Plymouth, Massachusetts) * Five mile road, in Michigan * ...

Noroton River The Noroton River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed April 1, 2011 stream flowing into Holly Pond and forming most of the border between Stamford and Darien, Connect ...

Rippowam River The Rippowam River is a river in Fairfield County, Connecticut and Westchester County, New York (United States). It drains a watershed area of and flows for from Ridgefield to Long Island Sound, which it enters in Stamford's harbor. Streamf ...

– also known as Mill River in its lower end in Stamford * Mianus River *

Byram River The Byram River is a river approximately in length,U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed April 1, 2011 in southeast New York and southwestern Connecticut in the United States ...

– Westernmost river basin in Connecticut

New York Harbor

*''

Hudson River The Hudson River is a river that flows from north to south primarily through eastern New York. It originates in the Adirondack Mountains of Upstate New York and flows southward through the Hudson Valley to the New York Harbor between Ne ...

(New York)'' **''

Croton River The Croton River ( ) is a river in southern New York with three principal tributaries: the West Branch, Middle Branch, and East Branch. Their waters, all part of the New York City water supply system, join downstream from the Croton Falls R ...

(New York)'' *** Titicus River

References

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