This is a list of islands in the U.S. state of
Delaware
Delaware ( ) is a state in the Mid-Atlantic region of the United States, bordering Maryland to its south and west; Pennsylvania to its north; and New Jersey and the Atlantic Ocean to its east. The state takes its name from the adjacent Del ...
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Artificial Island, New Jersey
Artificial Island is a U.S. island located along the eastern shore of the Delaware River, mostly in southwestern New Jersey with a tiny portion inside Delaware's boundaries. It is part of both Lower Alloways Creek Township, Salem County, New ...
— A small part of the Island is in
New Castle County, Delaware
New Castle County is the northernmost of the three counties of the U.S. state of Delaware (New Castle, Kent, and Sussex). As of the 2020 census, the population was 570,719, making it the most populous county in Delaware, with nearly 60% of th ...
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Pea Patch Island
Pea Patch Island is a small island, approximately 1 mi (1.6 km) long, in the U.S. state of Delaware, located in the mid channel of the Delaware River near its entrance into Delaware Bay. It is a low, marshy island, located in New Castle ...
— In the
Fort Delaware State Park
Fort Delaware State Park is a Delaware state park on Pea Patch Island in New Castle County, Delaware. A fortress was built on Pea Patch Island by the United States Army in 1815, near the conclusion of the War of 1812, to protect the harbors o ...
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Reedy Island
Reedy Island is a small island in the middle of the channel of the Delaware River near its mouth on the Delaware Bay in the U.S. state of Delaware. It is located approximately east of Port Penn, Delaware and southwest of Salem, New Jersey.
The i ...
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Fenwick Island (Delaware–Maryland)
Fenwick Island is a barrier island along the Atlantic Ocean in Delaware and Maryland in the United States. It contains the communities of South Bethany and Fenwick Island in Delaware along with Ocean City, Maryland. Until 1933, it was attached t ...
— Barrier island between Delaware and Maryland
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Delaware
Delaware ( ) is a state in the Mid-Atlantic region of the United States, bordering Maryland to its south and west; Pennsylvania to its north; and New Jersey and the Atlantic Ocean to its east. The state takes its name from the adjacent Del ...
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