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, and 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 Island Branford
Andrews Island Stonington
Ball Island New Haven Mill River
Barn Island Stonington
Barton Island Voluntown Pachaug Pond
Bear Island Branford Part of Thimble Islands
Beers Island Branford Part of Thimble Islands
Belden Island Branford
Betts Island Norwalk Part of Norwalk Islands
Bluff Island Greenwich
Bowers Island Greenwich
Brockway Island Essex Connecticut River
Burr Island Branford
Calf Islands Greenwich
Calf Pasture Island Norwalk Part of Norwalk Islands
Calves Island Old Lyme Connecticut River
Candlewood Isle New Fairfield Candlewood Lake
Canfield Island Norwalk/Westport
Carting Island Stratford Housatonic River
Cat Island Branford Part of Thimble Islands
Cedar Hammock Darien
Cedar Island Branford
Cedar Island Brookfield New Milford Bay
Cedar Island Clinton Connected to mainland by landfill
Charles Island Milford Connected by sandbar to mainland during low tide.
Chauncey Island Ridgefield Lake Naraneka
Chimon Island Norwalk Part of Norwalk Islands
Clam Island Branford
Cockenoe Island Westport Part of Norwalk Islands
Copps Island Norwalk Part of Norwalk Islands
Connected by sandbar to Crow Island
Cove Island Greenwich
Crab Island Darien
Crow Island Norwalk Part of Norwalk Islands
Connected by sandbar to Chimon Island and Copps Island
Curatole Island New Hartford West Hill Pond
Cut in Two Island Branford Part of Thimble Islands
Cuties Island Stamford Also a ghost town.
Davis Island Branford Part of Thimble Islands
Deer Island Sherman Candlewood Lake
Deer Island Litchfield Bantam Lake
Diving Island Greenwich
Dodges Island Stonington
Dog Island Norwalk Part of Norwalk Islands
Dogfish Island Branford Part of Thimble Islands
Duck Island Westbrook
Duck Island Milford Charles E. Wheeler Wildlife Management Area
Dunks Island Old Saybrook Wetlands off Plum Back River
East Crib Branford Part of Thimble Islands
East Stooping Bush Island Branford Part of Thimble Islands
Elihu Island Stonington
Enders Island Stonington
Eustasia Island Lyme Connecticut River
Falkner Island Guilford
Fayerweather Island Bridgeport Long Island Sound near Black Rock Harbor.
Fish Islands Darien
Foskett Island Guilford
Fowler Island Milford Housatonic River
Fox Island Lebanon Williams Pond
Frisbie Island Branford
Gates Island Groton
Gildersleeve Island Portland Connecticut River
Goat Island Stonington
Goodyear Island New Milford/Bridgewater Lake Lillinonah (Housatonic River)
Goose Island Greenwich
Goose Island Stratford Housatonic River
Goose Island Old Lyme Connecticut River
Goose Island Westport Part of Norwalk Islands
Gorham Island Westport Saugatuck River
Governor Island Branford Part of Thimble Islands
Governors Island Hampton Pine Acres Lake
Grass Island Stamford
Grassy Island Norwalk/Westport Part of Norwalk Islands
Great Captain Island Greenwich
Great Island Old Lyme
Green Island Branford
Green Island Sherman Candlewood Lake
Greenway Island Stamford
Greenwich Island Greenwich
Griswold Island East Lyme
Haddam Island Haddam Connecticut River
Hall Island Stonington Pawcatuck River
Hen Island Branford Part of Thimble Islands
High Island Branford Part of Thimble Islands
Hobs Island Groton Thames River
Holly Hock Island Norwich Yantic River
Horse Island Greenwich
Horse Island Branford Part of Thimble Islands
Horse Island Guilford
Hoyt Island Norwalk
Huntley Island East Lyme
Inner White Top Guilford
Jack Island Stamford
Johnson Island Branford Part of Thimble Islands
Kelsey Island Branford
Kings Island Enfield/Suffield Connecticut River
Kitts Island Westport
L'Hammock Island Norwalk Part of Norwalk Islands
Lewis Island Branford
Little Captain Island Greenwich
Little Hammock Island Norwalk Part of Norwalk Islands
Little Tavern Island Norwalk Part of Norwalk Islands
Long Island Stratford Housatonic River
Lord Island East Haddam Connecticut River
Lovers Island Branford
Lyddy Island Groton
Major Island Stonington Pawcatuck River
Marine Island Branford Part of Thimble Islands
Marvin Island Old Lyme Connecticut River
Mason's Island Stonington
Menunketesuck Island Westbrook
Mine Island Meriden Merimere Reservoir
Minnie Island Montville Gardner Lake
Money Island Branford Part of the Thimble Islands
Mouse Island Groton
Ned Island Darien
Nells Island Milford Charles E. Wheeler Wildlife Management Area
North Brother East Lyme
Nott Island Old Lyme Connecticut River
Oak Island New Milford Candlewood Lake
Outer Island Branford Part of Thimble Islands
Paquabaug Roxbury Shepaug River
Peach Island Norwalk In Norwalk Harbor
Peacock Island Stratford Housatonic River
Peagscomsuck Island Canterbury Quinebaug River
Pelican Island Greenwich
Pine Island Groton
Pine Island New Fairfield Candlewood Lake
Pope's Flat Stratford Housatonic River
Pot Island Branford Part of Thimble Islands
Potato Island Branford Part of Thimble Islands
Powder Island New London Thames River
Ram Island Stonington
Rat Island Lyme Connecticut River
Rich Island Greenwich
Rich Island East Haddam Connecticut River
Rock Island Stonington
Rock Island Bridgewater Candlewood Lake
Rogers Island Branford Part of Thimble Islands
Saint Helena Island Branford
Salt Island Westbrook
Sandy Hammock Norwalk Part of Norwalk Islands
Sandy Point Stonington Extends into Rhode Island
Scraggy Island East Hampton Pocotopaug Lake
Sedge Island Branford
Shea Island Norwalk Part of Norwalk Islands
Sheffield Island Norwalk Part of Norwalk Islands
Sherwood Island Westport
Shore Island Greenwich
Sixpenny Island Groton
Smith Island Branford Part of Thimble Islands
South Brother East Lyme
Spectacle Island Branford
Sprite Island Westport
Stone Island Clinton
Stony Island East Haven
Sumac Island Branford
Tavern Island Norwalk Part of Norwalk Islands
Thatchbed Island Essex Connecticut River
The Plans Norwalk Part of Norwalk Islands
Connected by sandbar to Shea and Sheffield islands
Thistle Island Sherman Candlewood Lake
Tree Hammock Norwalk Part of Norwalk Islands
Turks Island East Windsor Connecticut River
Tuxis Island Madison
Tweed Island Greenwich
Twin Islands East Hampton Pocotopaug Lake
Twotree Island Waterford
Umbrella Island Branford
Vincent Island Stamford
Walden Island Preston Thames River
Waterford Island East Lyme
Watts Island East Lyme
Wayland Island Branford Part of Thimble Islands
Wee Captain Island Greenwich
West Crib Branford Part of Thimble Islands
Wheeler Island Branford
Wilcox Island Middletown
Portland
Cromwell
Connecticut River
Wilson Head Greenwich
Wintergreen Island Winchester Highland Lake
Wood Island Norwalk Part of Norwalk Islands
Wooster Island Orange Housatonic River