Does Delaware touch the ocean?

Delaware sits on an east coast peninsula called the Delmarva. It's bordered by Pennsylvania in the north; the Delaware River, the Delaware Bay, New Jersey, and Atlantic Ocean in the east; and Maryland in the south and west.



Yes, Delaware absolutely touches the Atlantic Ocean. While much of the state's eastern border is defined by the Delaware Bay, the southeastern tip of the state—specifically in Sussex County—features a stunning stretch of Atlantic coastline. This area is home to famous resort towns such as Rehoboth Beach, Dewey Beach, Bethany Beach, and Fenwick Island. In 2026, these beaches are major economic drivers for the state, offering miles of sandy shores directly on the open ocean. If you look at a map, the "mouth" of the Delaware Bay ends near Cape Henlopen, and everything south of that point is considered the true Atlantic Seaboard. This makes Delaware part of the 14 US states that have a direct shoreline on the Atlantic Ocean, despite it being the second-smallest state in the nation.

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The river flows into Delaware Bay at Liston Point, 48 miles (77 km) upstream of the bay's outlet to the Atlantic Ocean between Cape May and Cape Henlopen.

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While the entire tidal river is part of the estuary, salinity levels vary from the Delaware Bay (saltwater) to Wilmington, Del. (brackish) to Philadelphia, Pa. and Trenton, N.J. (mostly freshwater).

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The waters of the Inland Bays and Delaware Bay may contain organisms that could be harmful to one's health, particularly for persons with certain medical conditions or compromised immune systems. Swimming could result in an increased risk of rashes, infections or gastrointestinal distress.

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However, the most famous fact about the Delaware River is the famous crossing of it by George Washington in 1776 which helped him successfully surprise Hessian troops in New Jersey during the American Revolution.

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Delaware's affordable housing, low taxes, and the thriving job market in diverse industries make the First State a first-rate place to live. Use our Cost of Living Comparison Calculator to compare Delaware's cost of living to major cities by hovering over one of the Delaware regions below and clicking on a city.

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For its size, the Upper Delaware River contains some of the highest water quality in the eastern United States. The upper portion of the watershed remains largely forested. These forests act as a natural buffer against pollution and erosion by filtering water, which is very important for maintaining water quality.

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Delaware Seashore The main attraction for many visitors is swimming and sunbathing along the park's spectacular beaches. Two ocean swimming areas feature modern bathhouses with showers and changing rooms. Lifeguards patrol the beaches from 9 am to 5 pm daily between Memorial Day weekend and Labor Day.

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