List of islands of Connecticut

This is a list of islands of Connecticut. The list does not include named minor rock outcroppings, former islands that are now connected to the mainland by landfill, or false islands that are connected by thin slivers of land to the mainland. Unless otherwise indicated, listed islands are in Long Island Sound.

Name Town Coordinates Notes
Andrews IslandBranford41°15′48″N 72°45′57″W
Andrews IslandStonington41°20′00″N 71°57′21″W
Ball IslandNew Haven41°18′27″N 72°54′25″WMill River
Barn IslandStonington41°19′46″N 71°52′06″W
Barton IslandGriswold41°33′29″N 71°53′53″WPachaug Pond
Bear IslandBranford41°15′29″N 72°44′21″WPart of Thimble Islands
Beers IslandBranford41°15′25″N 72°44′38″WPart of Thimble Islands
Belden IslandBranford41°15′47″N 72°45′42″W
Betts IslandNorwalk41°04′13″N 73°23′29″WPart of Norwalk Islands
Bluff IslandGreenwich41°00′38″N 73°35′55″W
Bowers IslandGreenwich40°59′45″N 73°38′04″W
Brockway IslandEssex41°22′24″N 72°22′35″WConnecticut River
Burr IslandBranford41°15′48″N 72°45′17″W
Calf IslandsGreenwich40°59′30″N 73°38′23″W
Calf Pasture IslandNorwalk41°04′57″N 73°23′01″WPart of Norwalk Islands
Calves IslandOld Lyme41°19′35″N 72°20′41″WConnecticut River
Candlewood IsleNew Fairfield41°28′52″N 73°27′15″WCandlewood Lake
Canfield IslandNorwalk/Westport41°05′49″N 73°22′58″W
Carting IslandStratford41°12′48″N 73°06′47″WHousatonic River
Cat IslandBranford41°15′15″N 72°44′20″WPart of Thimble Islands
Cedar HammockNorwalk41°04′10″N 73°25′04″W
Cedar IslandBranford41°15′30″N 72°45′39″W
Cedar IslandBrookfield41°31′43″N 73°26′31″WNew Milford Bay
Cedar IslandClinton41°15′56″N 72°31′33″WConnected to mainland by landfill
Charles IslandMilford41°11′27″N 73°03′17″WConnected by sandbar to mainland during low tide.
Chauncey IslandRidgefield41°19′22″N 73°30′21″WLake Naraneka
Chimon IslandNorwalk41°03′57″N 73°23′30″WPart of Norwalk Islands
Clam IslandBranford41°14′51″N 72°48′54″W
Clown IslandTorrington41°46′07″N 73°06′44″W
Cockenoe IslandWestport41°05′01″N 73°21′18″WPart of Norwalk Islands
Copps IslandNorwalk41°03′31″N 73°23′13″WPart of Norwalk Islands
Connected by sandbar to Crow Island
Cove IslandGreenwich41°02′50″N 73°30′03″W
Crab IslandDarien41°03′01″N 73°27′41″W
Crow IslandNorwalk41°03′40″N 73°23′26″WPart of Norwalk Islands
Connected by sandbar to Chimon Island and Copps Island
Curatole IslandNew Hartford41°52′46″N 73°02′37″WWest Hill Pond
Cut in Two IslandBranford41°15′30″N 72°44′45″WPart of Thimble Islands
Cuties Island (Vincent Island)Stamford41°02′08″N 73°30′36″WAlso a ghost town.
Davis IslandBranford41°15′20″N 72°44′44″WPart of Thimble Islands
Deer IslandSherman41°32′14″N 73°27′50″WCandlewood Lake
Deer IslandLitchfield41°41′48″N 73°13′42″WBantam Lake
Diving IslandGreenwich41°00′48″N 73°35′58″W
Dodges IslandStonington41°19′44″N 71°57′15″W
Dog IslandNorwalk41°03′30″N 73°24′35″WPart of Norwalk Islands
Dogfish IslandBranford41°15′25″N 72°44′49″WPart of Thimble Islands
Duck IslandWestbrook41°15′22″N 72°28′30″W
Duck IslandMilford41°10′27″N 73°06′30″WCharles E. Wheeler Wildlife Management Area
Dunks IslandOld Saybrook41°16′48″N 72°22′54″WWetlands off Plum Back River
East CribBranford41°15′11″N 72°45′12″WPart of Thimble Islands
East Stooping Bush IslandBranford41°15′04″N 72°44′50″WPart of Thimble Islands
Elihu IslandStonington41°20′12″N 71°53′14″W
Enders IslandStonington41°19′20″N 71°57′46″W
Eustasia IslandLyme41°23′32″N 72°25′13″WConnecticut River
Falkner IslandGuilford41°12′41″N 72°39′18″W
Fayerweather IslandBridgeport41°8′35″N 73°12′58″WLong Island Sound near Black Rock Harbor.
Fish IslandsDarien41°02′54″N 73°27′26″W
Foskett IslandGuilford41°15′29″N 72°42′40″W
Fowler IslandMilford41°14′13″N 73°06′08″WHousatonic River
Fox IslandLebanon41°38′23″N 72°18′27″WWilliams Pond
Frisbie IslandBranford41°15′46″N 72°45′18″W
Gates IslandGroton41°18′55″N 71°58′01″W
Gildersleeve IslandPortland41°36′21″N 72°36′52″WConnecticut River
Goat IslandStonington41°20′27″N 71°53′07″W
Goodyear IslandNew Milford/Bridgewater41°32′16″N 73°24′15″WLake Lillinonah (Housatonic River)
Goose IslandGreenwich41°01′00″N 73°35′57″W
Goose IslandStratford41°11′39″N 73°07′01″WHousatonic River
Goose IslandOld Lyme41°20′10″N 72°20′56″WConnecticut River
Goose IslandWestport41°04′18″N 73°22′17″WPart of Norwalk Islands
Gorham IslandWestport41°08′38″N 73°21′47″WSaugatuck River
Governor IslandBranford41°15′17″N 72°45′21″WPart of Thimble Islands
Governors IslandHampton41°47′30″N 72°05′03″WPine Acres Lake
Grannis IslandNew HavenQuinnipiac River
Grass IslandStamford41°01′35″N 73°32′22″W
Grassy IslandNorwalk/Westport41°04′13″N 73°23′00″WPart of Norwalk Islands
Great Captain IslandGreenwich40°58′56″N 73°37′43″W
Great IslandOld Lyme41°17′17″N 72°19′56″W
Green IslandBranford41°15′19″N 72°50′35″W
Green IslandSherman41°32′53″N 73°28′07″WCandlewood Lake
Greenaway Island (Caritas Island)Stamford41°02′12″N 73°30′20″W
Greenwich IslandGreenwich41°00′44″N 73°34′37″W
Griswold IslandEast Lyme41°17′40″N 72°13′27″W
Haddam IslandHaddam41°29′30″N 72°31′05″WConnecticut River
Hall IslandStonington41°19′39″N 71°51′04″WPawcatuck River
Hen IslandBranford41°15′14″N 72°44′48″WPart of Thimble Islands
High IslandBranford41°14′57″N 72°45′28″WPart of Thimble Islands
Hobs IslandGroton41°19′19″N 72°04′33″WThames River
Holly Hock IslandNorwich41°31′39″N 72°05′11″WYantic River
Horse IslandGreenwich41°00′50″N 73°36′17″W
Horse IslandBranford41°14′40″N 72°45′27″WPart of Thimble Islands
Horse IslandGuilford41°15′28″N 72°42′23″W
Hoyt IslandNorwalk41°04′26″N 73°25′09″W
Huntley IslandEast Lyme41°17′50″N 72°13′26″W
Inner White TopGuilford41°15′30″N 72°40′13″W
Jack IslandStamford41°01′51″N 73°32′08″W
Johnson IslandBranford41°14′49″N 72°44′58″WPart of Thimble Islands
Kelsey IslandBranford41°15′00″N 72°51′11″W
Kings IslandEnfield/Suffield41°57′17″N 72°36′45″WConnecticut River
Kitts IslandWestport41°06′23″N 73°22′04″W
L'Hammock IslandNorwalk41°03′17″N 73°24′30″WPart of Norwalk Islands
Lewis IslandBranford41°15′50″N 72°45′48″W
Little Captain IslandGreenwich40°59′19″N 73°36′41″W
Little Hammock IslandNorwalk41°03′15″N 73°24′14″WPart of Norwalk Islands
Little Tavern IslandNorwalk41°03′47″N 73°25′11″WPart of Norwalk Islands
Long IslandStratford41°13′05″N 73°06′48″WHousatonic River
Lord IslandEast Haddam41°26′10″N 72°27′04″WConnecticut River
Lovers IslandBranford41°15′17″N 72°49′52″W
Lyddy IslandGroton41°19′53″N 71°56′47″W
Major IslandStonington41°21′36″N 71°50′18″WPawcatuck River
Marine IslandBranford41°14′50″N 72°45′02″WPart of Thimble Islands
Marvin IslandOld Lyme41°17′58″N 72°20′13″WConnecticut River
Mason's IslandStonington41°19′58″N 71°58′01″W
Menunketesuck IslandWestbrook41°15′51″N 72°27′51″W
Mine IslandMeriden41°33′23″N 72°49′37″WMerimere Reservoir
Minnie IslandMontville41°30′21″N 72°13′19″WGardner Lake
Money IslandBranford41°14′58″N 72°45′06″WPart of the Thimble Islands
Mouse IslandGroton41°18′54″N 71°59′29″W
Ned IslandDarien41°02′51″N 73°28′33″W
Nells IslandMilford41°11′05″N 73°06′58″WCharles E. Wheeler Wildlife Management Area
North BrotherEast Lyme41°17′34″N 72°14′41″W
Nott IslandOld Lyme41°21′00″N 72°22′21″WConnecticut River
Oak IslandNew Milford41°31′33″N 73°26′32″WCandlewood Lake
Outer IslandBranford41°14′31″N 72°45′37″WPart of Thimble Islands
PaquabaugRoxbury41°33′25″N 73°19′49″WShepaug River
Peach IslandNorwalk41°04′58″N 73°24′19″WIn Norwalk Harbor
Peacock IslandStratford41°12′43″N 73°06′55″WHousatonic River
Peagscomsuck IslandCanterbury41°40′25″N 71°57′11″WQuinebaug River
Pelican IslandGreenwich41°00′31″N 73°35′05″W
Pine IslandGroton41°18′48″N 72°03′30″W
Pine IslandNew Fairfield41°28′20″N 73°26′44″WCandlewood Lake
Pope's FlatStratford41°13′10″N 73°06′37″WHousatonic River
Pot IslandBranford41°14′53″N 72°45′17″WPart of Thimble Islands
Potato IslandBranford41°15′23″N 72°45′29″WPart of Thimble Islands
Powder IslandNew London41°20′24″N 72°05′32″WThames River
Ram IslandStonington41°18′48″N 71°58′44″W
Rat IslandLyme41°21′15″N 72°21′40″WConnecticut River
Rich IslandGreenwich41°00′11″N 73°38′38″W
Rich IslandEast Haddam41°26′20″N 72°27′07″WConnecticut River
Rock IslandStonington41°19′50″N 71°56′04″W
Rock IslandBridgewater41°31′26″N 73°26′16″WCandlewood Lake
Rogers IslandBranford41°15′33″N 72°45′46″WPart of Thimble Islands
Saint Helena IslandBranford41°15′50″N 72°46′15″W
Salt IslandWestbrook41°16′31″N 72°26′30″W
Sandy HammockNorwalk41°03′49″N 73°24′27″WPart of Norwalk Islands
Sandy PointStonington41°19′52″N 71°53′47″WExtends into Rhode Island
Scraggy IslandEast Hampton41°35′59″N 72°30′11″WPocotopaug Lake
Sedge IslandBranford41°14′54″N 72°48′39″W
Shea IslandNorwalk41°03′36″N 73°24′08″WPart of Norwalk Islands
Sheffield IslandNorwalk41°03′05″N 73°24′58″WPart of Norwalk Islands
Sherwood IslandWestport41°06′53″N 73°19′51″W
Shore IslandGreenwich41°00′00″N 73°38′38″W
Sixpenny IslandGroton41°20′03″N 71°58′49″W
Smith IslandBranford41°15′20″N 72°44′23″WPart of Thimble Islands
South BrotherEast Lyme41°17′22″N 72°14′22″W
Spectacle IslandBranford41°14′45″N 72°48′15″W
Sprite IslandWestport41°05′23″N 73°22′52″W
Stone IslandClinton41°15′13″N 72°30′47″W
Stony IslandEast Haven41°14′24″N 72°51′48″W
Sumac IslandBranford41°14′48″N 72°48′35″W
Tavern IslandNorwalk41°03′38″N 73°25′16″WPart of Norwalk Islands
Thatchbed IslandEssex41°20′47″N 72°23′00″WConnecticut River
The PlansNorwalk41°03′10″N 73°24′17″WPart of Norwalk Islands
Connected by sandbar to Shea and Sheffield islands
Thistle IslandSherman41°33′26″N 73°28′50″WCandlewood Lake
Tree HammockNorwalk41°03′52″N 73°24′18″WPart of Norwalk Islands
Tree Island (Unofficial Name) Wolcott 41° 38' 18" N 72° 57' 56" W Cedar Lake
Turks IslandEast Windsor41°53′41″N 72°37′13″WConnecticut River
Tuxis IslandMadison41°15′57″N 72°36′06″W
Tweed IslandGreenwich41°00′31″N 73°36′58″W
Twin IslandsEast Hampton41°35′37″N 72°30′15″WPocotopaug Lake
Twotree IslandWaterford41°17′40″N 72°09′09″W
Umbrella IslandBranford41°14′59″N 72°50′31″W
Walden IslandPreston41°28′07″N 72°04′04″WThames River
Waterford IslandEast Lyme41°18′57″N 72°10′42″W
Watts IslandEast Lyme41°17′56″N 72°13′13″W
Wayland IslandBranford41°15′12″N 72°44′38″WPart of Thimble Islands
Wee Captain IslandGreenwich40°59′25″N 73°36′32″W
West CribBranford41°15′06″N 72°45′18″WPart of Thimble Islands
Wheeler IslandBranford41°15′35″N 72°45′09″W
Wilcox IslandMiddletown
Portland
Cromwell
41°34′29″N 72°38′56″WConnecticut River
Wilson HeadGreenwich41°00′01″N 73°38′25″W
Wintergreen IslandWinchester41°54′29″N 73°05′41″WHighland Lake
Wood IslandNorwalk41°03′23″N 73°24′18″WPart of Norwalk Islands
Wooster IslandOrange41°16′50″N 73°04′58″WHousatonic River
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