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The Town of Islip is located in south central Suffolk County. It is one of the ten towns of Suffolk County and one of the 5 western towns.


Matthias Nicoll relocated to New York from Islip, Northamptonshire, England, in 1664. His son, William Nicoll, became a royal patentee of the east end of what is now the Town of Islip, and his domain reached from East Islip to Bayport and included Sayville, West Sayville, Oakdale, Great River, Islip Terrace, Central Islip, Hauppauge, Holbrook, Bohemia, Brentwood, Holtsville and a portion of Ronkonkoma. All of this land was bought from Winne-quaheagh, Sachem (chief) of Connetquot in 1683. The yearly fee paid to Governor Thomas Dongan of New York was five bushels of quality winter wheat or 25 shillings. Other early land patentees were Andrew Gibb (Islip Hamlet), John Mowbray (Bay Shore, originally Awixa), Stephan Van Cortlandt (Sagtikos Manor), and Thomas Willets (West Islip).

By 1710, the colonial government passed an act to enable the precinct of Islip in the County of Suffolk to elect two assessors, a collector, a constable and a supervisor. The people had a voice. Growth, however, remained at a standstill until the Revolutionary War ended when, in the 17 years that followed, there was more progress than in the 50 years preceding. This activity was partly due to the impact of American shipping.

By 1825, it was necessary to install a Fire Island light across the Great South Bay and regular ferry service between Bay Shore and Fire Island began in 1862. In 1867 the Long Island Rail Road came to Islip and the first depot was built. People were discovering Islip and the tourist trade soon took hold.

Tourism brought much wealth into the area and business spung up to service the hotels that began to dot the landscape. Some of those tourists stayed on and built summer homes, thus the vacationers and the town seemed to enjoy a mutual prosperity. But the old guard was changing. Early in the 20th century, diesel-powered ferries replaced the whale boats while housing developments and small manufacturing firms sprang up on the sites of old farms. Like the rest of the country, Islip and all of Long Island suffered during the Stock Market Crash and the Great Depression. When the veterans returned home from World War II, there was a housing shortage in New York City, but a rebirth on Long Island. Within a decade following the end of the war, Islip began to turn from a bucolic farming community into a bustling suburb, becoming what was once described as a "bedroom" of New York City. The influx of people was tremendous - from 71,000 in 1950 to 280,000 in 1970. Then, as growth continued eastward on Long Island, the pace in Islip slowed.


The town is governed by a Town Supervisor, and four councilmembers elected on an at-large basis. There is also a Town Clerk and Receiver of Taxes, both duly elected. All of the elected officials serve staggered four year terms that are up for election in odd years, except when special elections are held pursuant to state law.

The town board has jurisdiction over governmental affairs within the town's boundaries, excluding incorporated villages which have their own local government. Such things include passing a budget and enacting new laws.

Communities and Locations

Villages (Incorporated)

Ocean Beach (Located on Fire Island)
Saltaire (Located on Fire Island)

Hamlets (Unincorporated)

Bay Shore Islip Terrace
Bayport Kismet (Located on Fire Island)
Baywood Lake Ronkonkoma (partially; with the Towns of Brookhaven and Smithtown)
Bohemia Lonelyville (Located on Fire Island)
Brentwood North Bay Shore
Central Islip North Great River
East Islip Oakdale
Great River Ronkonkoma (partially; with the Town of Brookhaven)
Hauppauge Sayville
Holbrook (partially; with the Town of Brookhaven) West Bay Shore
Holtsville (partially; with the Town of Brookhaven) West Islip
Islip West Sayville

State Parks

Bayard Cutting Arboretum State Park
Brentwood State Park
Connetquot River State Park Preserve
Heckscher State Park
Robert Moses State Park



Long Island MacArthur Airport and the New York Air Route Traffic Control Center, located in the Town of Islip, are both in the hamlet of Ronkonkoma. A smaller rural airport known as Bayport Aerodrome also exists within the town used for antique aircraft.

Railroad Lines

The Long Island Rail Road's Montauk Branch is one of two lines running through the town spanning between the Village of Babylon and the Hamlet of Blue Point in the Town of Brookhaven, with stations from Bay Shore through Sayville. The other line is the Main Line which runs through the northern part of the town with stations in Brentwood, Central Islip and Ronkonkoma, which not only serves as a major transportation hub, but is also located on the Islip-Brookhaven Town Line.

Bus Service

The Town of Islip is served entirely by Suffolk County Transit bus routes.

Major Roads

Interstate 495 The Long Island Expressway
Southern State Parkway The Southern State Parkway
Heckscher State Parkway The Heckscher State Parkway
Sagtikos State Parkway The Sagtikos State Parkway
Robert Moses Causeway The Rober Moses Causeway
Ocean Parkway The Ocean Parkway
New York State Route 27 Sunrise Highway
New York State Route 27A Mountauk Highway 27A
County Route 67 (Suffolk County, New York) Motor Parkway
County Route 85 (Suffolk County, New York) Montauk Highway East
County Route 93 (Suffolk County, New York) Lakeland Avenue
County Route 97 (Suffolk County, New York) Nicolls Road
New York State Route 111 Islip Ave
New York State Route 231 Babylon–Northport Expressway & Deer Park Avenue
New York State Route 454 Veterans Highway
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