Suffolk County is a predominantly suburban county and is the easternmost county in the U.S. state of New York. The county was named after the county of Suffolk in England, from where its earliest European settlers came. Suffolk County occupies the central and eastern part of Long Island, in the extreme east of New York State. The eastern end of the county splits into two peninsulas, known as the North Fork and the South Fork. The county is surrounded by water on three sides, including the Atlantic Ocean and Long Island Sound, with 980 miles (1,580 km) of coastline. The eastern end contains large bays.
In 2008, Forbes magazine released its American Community Survey and named Suffolk County number 4 in its list of the top 25 richest counties in America. In 2016, according to Business Insider, the 11962 zip code encompassing Sagaponack, within Southampton, was listed as the most expensive in the U.S., with a median home sale price of $8.5 million. Robins Island is an Island in the Peconic Bay between the North and South folks of eastern Suffolk County. It is within the jurisdiction of Town of Southold in Suffolk County, New York. The Island is 435 acres and presently undeveloped. The island is privately owned and not accessible to the public.