East Islip is a hamlet and CDP in the Town of Islip, Suffolk County, New York, United States. At the mature of the 2010 census, the CDP had a population of 14,475.

Originally referred to as “East of Islip”, the pronounce was acquired in 1890 from the estate of William Nicoll, an English aristocrat who purchased the surrounding land in 1683 to erect a family residence. Nicoll’s buy comprised 51,000 acres (210 km) from the Secatogue Indians, reaching as far-off as Bayport to the east, Babylon to the west and Ronkonkoma to the north. His mansion, Islip Grange, named after his family’s ancestral land at Northampshire, England, stood near the shoreline of what is now Heckscher State Park.

East Islip, as with ease as many hamlets along Long Island’s south shore, was in the same way as an enclave for some of the nation’s wealthiest families. Its estates at one get older included the Hollins, Gulden, and Knapp estates, among others. An original estate mansion, Brookwood Hall, has passed from its last private owners, the Thorne family (originally of Great Neck during the Dutch colonial era) and now serves as a municipal building for the Town of Islip. The Sullivan land became the home of the Hewlett School, a private boarding college which closed unexpectedly after the incline of the century. Some land and in advance farmlands were donated to the Roman Catholic church and make happening the current grounds of St Mary’s of East Islip, which includes a private elementary and center school, in addition to church and additional parish buildings. The original Westbrook farm upon the boundary along with East Islip and Oakdale, near the Bayard Cutting Arboretum, has ceased operations, and its fields are now the house of East Islip Soccer, near the fields allocate for the Little League of the Islips.

Today, modern East Islip is composed of much smaller, yet booming communities and few estates. Many of these newer communities were built on the land that was later than part of former estates that were sold off, most notably the house of Percy G. Williams. The Moorings, an opulent haven guard-gated private community, is one of the hamlet’s premier neighborhoods. Other neighborhoods within the hamlet tote up Deer Run and Country Village as skillfully as the Beecher Estates.