|Middlesex Beach, Delaware|
|Elevation||13 ft (4 m)|
|Time zone||Eastern (EST) (UTC-5)|
|o Summer (DST)||EDT (UTC-4)|
|GNIS feature ID||214303|
Middlesex Beach is an unincorporated community in Sussex County, Delaware, United States. Middlesex Beach is located on the Atlantic Ocean and Delaware Route 1 between Bethany Beach and South Bethany. The community was built in 1958-1959.