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.
WORCESTER COUNTY
- Assacorkin Island, Chincoteague Bay
- Assateague Island, Atlantic Ocean
- Ayers Island, Trappe Creek
- Bay Island, Chincoteague Bay
- Beacon Clumps, Chincoteague Bay
- 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
? Copyright Maryland State Archives