About This Place
Islip Terrace is a hamlet and census-designated place (CDP) in Suffolk County, New York, United States. The population was 5,641 at the 2000 census.
In 1914, a New York City real estate agent developed houses in the woods between East Islip and Central Islip State Hospital. Many who worked in the hospital lived here. The town was originally called Germantown to attract people of German origin, but was renamed to Islip Terrace because of German dissent due to World War II.
Islip Terrace is located at 40°44′55″N 73°11′11″W / 40.74861°N 73.18639°W / 40.74861; -73.18639 (40.748738, -73.186417).