Middle Island is a hamlet located in Suffolk County, New York, on Long Island. It is part of the Town of Brookhaven and is primarily a residential community. The area is known for its suburban atmosphere, with various parks and recreational facilities available for residents and visitors. The hamlet is situated near the Long Island Expressway, providing convenient access to other parts of Long Island and New York City. Middle Island is also close to several natural attractions, including the Cupsogue Beach County Park and the Cranberry Bog, making it a pleasant place for outdoor activities.