MARYLAND AT A GLANCE

LAND

ISLANDS

• Islands (by county)

Over time, the number of islands in Maryland has decreased. Rising sea levels have caused many islands in the Chesapeake Bay, including Sharps Island and Three Sisters Island, to disappear. Others, such as Smith Island, are in danger of being flooded. Still others, such as Hart-Miller Island, have increased in size from extensive deposits of dredged materials. At the same time, some private individuals have donated islands to the State of Maryland to ensure the preservation of island plants, wildlife, and ecology.

Assateague Island National Park Seashore (Worcester County), May 2015. Photo by Sarah A. Hanks.

• DNR Answers Questions about Sea Level Rise In Response to IPCC Report

• Big Island, Rhode River
• Brewers Island, Marley Creek
• Dobbins Island, Sillery Bay
• Flat Island, Rhode River
• Gibson Island, Chesapeake Bay
• Goose Island, South River
• High Island,* Rhode River
  *(formerly an island, now due to erosion designated a shoal)
• Little Island, Sillery Bay
• Snake Island, Patuxent River
• St. Helena Island, Little Round Bay
• The Hammocks Island, Main Creek
• Three Sisters Islands, Chesapeake Bay [no longer exists]
• Turkey Point Island, South River
• White Rocks Islands, Patapsco River

BALTIMORE COUNTY

• Carroll Island, Gunpowder River
• Hart-Miller Island, Chesapeake Bay
• Hathaway Island, Patapsco River
• Pleasure Island, Chesapeake Bay
• Sue Island, Middle River

CALVERT COUNTY

• Broomes Island, Patuxent River
• Buzzard Island, Patuxent River
• Hog Island, Chesapeake Bay
• Ma Leg Island, Patuxent River
• Solomons Island (formerly Bourne's Island, Somervell's Island, Sandy Island), Patuxent River

CECIL COUNTY

• Hen Island, Sassafras River
• Herring Island, Elk River
• Garrett Island, Susquehanna River
• Indian Rock Island, Susquehanna River
• Knight Island, Sassafras River
• Long Island, Susquehanna River
• Mills Island, Susquehanna River
• Roberts Island, Susquehanna River
• Rough Island, Susquehanna River
• Rowland Island, Susquehanna River
• Spencer Island, Susquehanna River
• Steels Island, Susquehanna River
• Sterrett Island, Susquehanna River

CHARLES COUNTY

• Chopawamsic Island, Potomac River
• Cobb Island, Potomac River
• Cooksey Island, Wicomico River
• Craney Island, Potomac River
• Wills Island, Port Tobacco River

DORCHESTER COUNTY

• Adam Island, Holland Straits
• Asquith Island, Honga River
• Axies Island, Nanticoke River
• Barren Island, Chesapeake Bay
• Bettys Island, Blackwater River
• Billys Island, Honga River
• Bloodsworth Island, Chesapeake Bay
• Bull Point Island, Meekins Creek
• Cattail Island, Chesapeak Bay
• Chance Island, Transquaking River
• Cherry Island, Little Choptank River
• Clay Island, Fishing Bay
• Dunnock Island, Dunnock Slough
• Elliott Island, Fishing Bay
• Grays Island, Fishing Bay
• Gunners Island, Chesapeake Bay
• Hog Island, Hopper Straits
• Holland Island, Chesapeake Bay
• Hoopers Island, Chesapeake Bay
• James Island, Chesapeake Bay
• Jenny Island, Chesapeake Bay
• Langrells Island, Nanticoke River
• Long Island, Chesapeake Bay
• Lower Hopper Island, Chesapeake Bay
• Middle Hooper Island, Chesapeake Bay
• Northeast Island, Chesapeake Bay
• Opossum Island, Tar Bay
• Pone Island, Chesapeake Bay
• Poplar Island, Fishing Bay
• Pot Island, Honga River
• Punch Island, Chesapeake Bay
• Ragged Island, Little Choptank River
• Rowland Island, Blackwater River
• Sandy Island, Nanticoke River
• Sharpes Island, Chesapeake Bay
• Snake Island, Fishing Bay
• Spriggs Island, Blackwater River
• Spring Island, Holland Straits
• Stingaree Island, Blackwater River
• Swan Island, Chesapeake Bay
• Taylors Island, Chesapeake Bay
• Upper Hooper Island, Chesapeake Bay
• Woods Island, Blackwater River
• Woolford Island, Parsons Creek
• Wroten Island, Honga River

FREDERICK COUNTY

• Cox Island, Potomac River
• Heater's Island (formerly Conoy Island), Potomac River
• Mason Island, Potomac River
• Nolands Island, Potomac River
• Paton Island, Potomac River
• Reed Island, Potomac River

GARRETT COUNTY

• Hamilton Island

HARFORD COUNTY

• Amos Island, Susquehanna River
• Dutch Island, Susquehanna River
• Hickorynut Island, Susquehanna River
• Meadow Island, Susquehanna River
• Monks Island, Chesapeake Bay
• Monocacy Island, Chesapeake Bay
• Mutton Islands, Susquehanna River
• Pooles Island, Chesapeake Bay
• Neds Island, Chesapeake Bay
• Ross Island, Susquehanna River
• Robert Island, Susquehanna River
• Rowland Island, Susquehanna River
• St. Catherine Island, Susquehanna River
• Snake Island, Susquehanna River
• Spencer Island, Susquehanna River
• Spesutie Island, Chesapeake Bay
• Spry's Island, Chesapeake Bay [no longer exists]
• Taylor Island, Chesapeake Bay
• Tyding Island, Chesapeake Bay
• Wood Island, Susquehanna River

KENT COUNTY

• Cacaway Island, Langford Bay
• Chase Island, Chester River
• Cockey Island, Chester River
• Eastern Neck Island, Chesapeake Bay
• Little Neck Island, Chesapeake Bay
• Millers Island, Chester River
• Pooles Island, Chesapeake Bay
• Rush Island, Chesapeake Bay

MONTGOMERY COUNTY

• Bealls Island, Potomac River
• Bear Island, Potomac River
• Cabin John Island, Potomac River
• Cedar Island, Potomac River
• Clagett Island, Potomac River
• Conn Island, Potomac River
• Elm Island, Potomac River
• Falls Island, Potomac River
• Gladys Island, Potomac River
• Grapevine Island, Potomac River
• Harrison Island, Potomac River
• Hermit Island, Potomac River
• Herzog Island, Potomac River
• High Island, Potomac River
• Katie (Poteau) Island, Potomac River
• Langly Island, Potomac River
• Mason Island, Potomac River
• Minnie Island, Potomac River
• Norbell Island, Potomac River
• Offutt Island, Potomac River
• Olmstead Island, Potomac River
• Perry Isle, Potomac River
• Plummers Island, Potomac River
• Rocky Islands, Potomac River
• Rupert Island, Potomac River
• Scott Island, Potomac River
• Selden Island, Potomac River
• Sharpshin Island, Potomac River
• Sherwin Island (Cupids Bower), Potomac River
• Snake Island, Potomac River
• Submarine Island, Potomac River
• Swainson Island, Potomac River
• Sycamore Island, Potomac River
• Tenfoot Island, Potomac River
• Trammel Island, Potomac River
• Turkey Island, Potomac River
• Van Deventers Island, Potomac River
• Vaso Island, Potomac River
• Wades Island, Potomac River
• Watkins Island, Potomac River

QUEEN ANNE'S COUNTY

• Bodkin Island, Eastern Bay
• Carpenter Island, Chester River
• DeCoursey Island, Wye River
• Herring Island, Eastern Bay
• Hog Island, Prospect Bay
• Johnson Island, Crab Alley Bay
• Kent Island, Chesapeake Bay
• Little Island, Crab Alley Bay
• Long Marsh Island, Eastern Bay
• Parson Island, Eastern Bay
• Philpots Island, Eastern Bay
• Wye Island, Wye River

ST. MARY'S COUNTY

• Blakistone Island, Potomac River
• Bullock Island, Wicomico River
• Heron Island, Potomac River
• Jimmy Island, St. Mary's River
• St. Catherine Island, Potomac River
• St. Clement's Island, Potomac River
• St. George Island, Potomac River
• St. Margaret Island, Wicomico River
• Tippity Wichity Island (formerly Lynch's Island), St. Mary's River
• White Point Island, Wicomico River

SOMERSET COUNTY

• Big Island, Tangier Sound
• Boat Island, Chesapeake Bay
• Deal Island, Tangier Sound
• Deep Banks Island, Holland Straits
• Fishing Island, Manokin River
• Gab Island, Chesapeake Bay
• Hog Neck Island, Chesapeake Bay
• Horse Hammock, Tangier Sound
• House Island, Tangier Sound
• Janes Island, Chesapeake Bay
• Jersey Island, Little Annemessex River
• Little Deal Island, Tangier Sound
• Little Troy Island, Chesapeake Bay
• Maddox Island, Manokin River
• Otter Island, Tangier Sound
• Piney Island, Manokin River
• Pry Island, Holland
• St. Pierre Island, Manokin River
• Smith Island, Chesapeake Bay
• Solomons Lump, Kedges Straits
• South Marsh Island, Chesapeake Bay
• Swan Island, Chesapeake Bay
• Troy Island, Chesapeake Bay
• Turtle Egg Island, Holland Straits
• Western Islands, Kedges Straits

TALBOT COUNTY

• Avalon Island, Harris Creek
• Bruffs Island, Wye River
• Coaches Neck Island, Chesapeake Bay
• Goat Island, Chesapeake Bay
• Hambleton Island, Broad Creek
• Herring Island, Miles River
• Jefferson Island, Chesapeake Bay
• Nelson Island, Choptank River
• Poplar Island, Chesapeake Bay
• Royston Island, Choptank River
• Sharps Island, Chesapeake Bay [no longer exists]
• Tilghman Island, Chesapeake Bay

WASHINGTON COUNTY

• Byrnes Island, Potomac River
• Duck Island, Potomac River
• Knott Island, Potomac River
• Shepherds Island, Potomac River

WICOMICO COUNTY

• Round Island, Nanticoke River

• Assacorkin Island, Chincoteague Bay
• Assateague Island, Atlantic Ocean
• Ayers Island, Trappe Creek
• Bay Island, Chincoteague Bay
• Beacon Clumps, Chincoteague Bay

Assateague Island National Park Seashore (Worcester County), May 2015. Photo by Sarah A. Hanks.

• Big Island, Assawoman Bay
• Boar Island, Assawoman Bay
• Brady Island, Assawoman Bay
• Cedar Island, Chincoteague Bay
• Collier Island, Isle of Wight Bay
• Corn Hammock, Assawoman Bay
• Cropper Island, Newport Bay
• Devil Island, Assawoman Bay
• Dog and Bitch Island, Isle of Wight Bay
• Drum Island, Isle of Wight Bay
• Eagle Island, St. Martin River
• Fenwick Island, Atlantic Ocean
• Gambage Island, Turville Creek
• Grassy Island, Isle of Wight Bay
• Great Egging Island, Chincoteague Bay
• Hen and Chickens Island, St. Martin River
• Hills Island, Assawoman Bay
• Hog Island, Johnson Bay
• Horn Island, Isle of Wight Bay
• Horse Island, Assawoman Bay
• Isle of Wight, Intracoastal Waterway
• Johns Hammock, Assawoman Bay
• Little Egging Island, Chincoteague Bay
• Lumber Island, Chincoteague Bay
• Mallard Island, Isle of Wight Bay
• Margots Island, St. Martin River
• Mills Island, Chincoteague Bay
• Oak Island, Assawoman Bay
• Outward Trump, Chincoteague Bay
• Piney Island, Assawoman Bay
• Piney Island, Grey Creek
• Piney Island, St. Martin River
• Pope Island, Chincoteague Bay
• Rattlesnake Island, Martin Bay
• Reedy Island, Assawoman Bay
• Reedy Island, Isle of Wight Bay
• Rich Island, Assawoman Bay
• Robins Marsh, Chincoteague Bay
• St. George Island
• Sandy Point Island, Sinepuxent Bay
• Shelldrake Island, Brockanorton Bay
• South Hammocks Island, Assawoman Bay
• Steves Island, Wicomico River
• Tingles Island, Chincoteague Bay
• Tizzard Island, Johnson Bay
• Tulls Island, Assawoman Bay
• Twin Islands, Chincoteague Bay

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