Townapedia
Lodge at Connetquot
Lodge at Connetquot · Christine from L.I., CC BY-SA 4.0
Jacob Ockers House
Jacob Ockers House · DanTD, CC BY-SA 3.0
Rudolph-oyster-house
Rudolph-oyster-house · Dmadeo, CC BY-SA 4.0
Westbrook, Bayard Cutting Arboretum, seen from the Great Lawn 01
Westbrook, Bayard Cutting Arboretum, seen from the Great Lawn 01 · Joe Mabel, CC BY-SA 4.0
Saint John's Episcopal Church & Cemetery (Oakdale, New York)
Saint John's Episcopal Church & Cemetery (Oakdale, New York) · DanTD, CC BY-SA 3.0
Wereholme; Harold Weeks Estate-1
Wereholme; Harold Weeks Estate-1 · DanTD, CC BY-SA 4.0

Great River, New York

Great River is a community of 1,899 people in Suffolk County, New York.

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Population1,899 +35.2% since 2019
Elevation13 ft 4 m
Land area4.2 sq mi
ZIP codes11730, 11739
Nearest airportLong Island MacArthur Airport (ISP) 6 mi

Why visit Great River

Townapedia lists 10 museums and landmarks, 17 parks and trails, 11 places to eat, 1 place to stay and 1 attraction in and around town.

Highlights include Connetquot River State Park Preserve, Jacob Ockers House, Bayard Cutting Arboretum State Park and Heckscher State Park.

August is the warmest month, with average highs of 80°F; January lows average 26°F.

About Great River

Great River is a suburban hamlet and Census-designated place (CDP) located within the Town of Islip in Suffolk County, on Long Island, in New York, United States. The population was 2,005 at the time of the 2020 census.

From the Wikipedia article Great River, New York (this version), under CC BY-SA 4.0.

Things to do1

Bayway Arts Center

Cinema and theater · 1.9 mi

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Museums and landmarks10

Connetquot River State Park Preserve

Monument and historic site · National Register of Historic Places · 2.5 mi

State park in New York

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Jacob Ockers House

Monument and historic site · National Register of Historic Places · 2.4 mi

Historic house in New York, United States

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Modesty

Monument and historic site · National Register of Historic Places · 3.1 mi

Oyster-dredging sloop built in Long Island

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Priscilla

Monument and historic site · National Register of Historic Places · 3.2 mi

Classic oyster dredging sloop

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Rudolph Oyster House

Monument and historic site · National Register of Historic Places · 3.1 mi

Single-family detached home in New York, United States of America

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Wereholme

Monument and historic site · National Register of Historic Places · 3.1 mi

Historic house in New York, United States

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Westbrook

Monument and historic site · National Register of Historic Places · 1.6 mi

Large estate house listed on National Register of Historic places in Great River, NY

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Long Island Maritime Museum

Museum · 3.2 mi

Museum in West Sayville, New York, United States

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Bayard Cutting Estate Mansion

Museum · 1.6 mi

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Great River Depot

Monument and historic site · 2.0 mi

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Parks, trails and playgrounds17

East Beach

Beach · 0.8 mi

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Overlook Beach

Beach · 1.1 mi

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West Beach

Beach · 1.3 mi

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Byron Lake Park

Park · 2.0 mi

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Bayard Cutting Arboretum

Park · 1.5 mi

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Hollins Preserve

Hiking and trails · 1.7 mi

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5 more on the map.

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Restaurants and cafes11

Hometown Cafe

Cafe · American · 2.1 mi

104 East Main Street;Main Street, East Islip

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Jackson Hall

Restaurant · 1.8 mi

335 East Main Street, East Islip

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The Snapper Inn

Restaurant · Seafood · 1.0 mi

500 Shore Drive, Oakdale

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Isabel's Pizza

Restaurant · Pizza · 2.1 mi

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Shandon Court

Restaurant · 2.1 mi

115 East Main Street;Main Street, East Islip

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Bayside Clam Bar

Restaurant · 1.8 mi

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George Martin's Strip Steak

Restaurant

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Great River Deli

Restaurant

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Harry's Bagels

Cafe · 1.8 mi

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Patty McGee's

Bar and pub · 2.1 mi

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Burger Break

Fast food · Burger · 2.1 mi

105 East Main Street, East Islip

Mo-Su 11:30-21:00

Open in Google Maps · +1-631-491-2867

History

For centuries, clusters of the Algonquin people known as the Montaukett people occupied the territory known as Secatogue, now the town of Islip. They lived in clusters located at West Islip (Secatogue), Bay Shore (Penataquit), Great River, and Oakdale (Connetquot).

On November 29, 1683, William Nicoll (Nicolls), founder of the Town of Islip and son of New York City Mayor Matthias Nicoll, was awarded the first royal patent to the east end of what is now the Town of Islip. Nicoll purchased land from Sachem (Paramount chief) Winnequaheagh of Connetquot. He named his 50,000-acre (20,000 ha) plantation (an 8-by-10-mile (13 by 16 km) tract of land) "Islip Grange", in honor of his ancestral home of Islip (UK) in East Northamptonshire, England, from which Matthias emigrated in 1664. Nicoll's domain extended from East Islip to Bayport and embraced the present-day communities of Sayville, West Sayville, Oakdale, Great River, Islip Terrace, Central Islip, Hauppauge, Holbrook, Bohemia, Brentwood, Holtsville, and a portion of Ronkonkoma. Nicoll paid an annual quit-rent (tax) to Thomas Dongan, 2nd Earl of Limerick and Governor of the Province of New York, of five bushels of good winter wheat or twenty-five (25) shillings payable annually on March 25.

From the History section of Great River, New York on Wikipedia, under CC BY-SA 4.0.

Where to stay1

Churches and places of worship3

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Shopping1

Gas and EV charging1

Schools, colleges and libraries38

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Map of Great River

83 places. The map loads OpenStreetMap tiles when you open it.

Climate by month

20°40°60°80°January: 3.5 in of rainFebruary: 4.6 in of rainMarch: 4.4 in of rainApril: 3.8 in of rainMay: 3.5 in of rainJune: 3.7 in of rainJuly: 4.7 in of rainAugust: 5.8 in of rainSeptember: 4.3 in of rainOctober: 3.6 in of rainNovember: 3.0 in of rainDecember: 4.9 in of rainJanuary: 39°FFebruary: 40°FMarch: 46°FApril: 56°FMay: 64°FJune: 74°FJuly: 80°FAugust: 80°FSeptember: 73°FOctober: 63°FNovember: 53°FDecember: 44°FJanuary: 26°FFebruary: 27°FMarch: 33°FApril: 43°FMay: 52°FJune: 62°FJuly: 70°FAugust: 69°FSeptember: 61°FOctober: 50°FNovember: 40°FDecember: 32°FJFMAMJJASOND
Average high Average low Rain
Monthly table
MonthHighLowRain
Jan39°F26°F3.5 in
Feb40°F27°F4.6 in
Mar46°F33°F4.4 in
Apr56°F43°F3.8 in
May64°F52°F3.5 in
Jun74°F62°F3.7 in
Jul80°F70°F4.7 in
Aug80°F69°F5.8 in
Sep73°F61°F4.3 in
Oct63°F50°F3.6 in
Nov53°F40°F3.0 in
Dec44°F32°F4.9 in

U.S. Climate Normals 1991-2020 for Molloy Cercom (3 mi away), NOAA NCEI.

People and cost of living

$136,071median household income
$802,800median home value
$2,750median monthly rent
53.1median age
56.4%of adults have a bachelor's degree or higher
66.9%of homes are owner-occupied
31.3 minaverage commute
Age of residents
Under 1812%18 to 3421%35 to 6439%65 and over28%

American Community Survey 5-year estimates, 2020-2024, U.S. Census Bureau. Estimates have margins of error, larger for small towns.

Disaster history

Suffolk County has had 25 federal disaster declarations since 2000, most often for hurricanes.

  • 2024-10-21: Severe Storm And Flooding (Severe Storm)
  • 2024-08-25: Severe Storm And Flooding (Severe Storm)
  • 2023-03-15: Severe Winter Storm And Snowstorm (Snowstorm)
  • 2021-09-05: Remnants Of Hurricane Ida (Hurricane)
  • 2021-09-02: Remnants Of Hurricane Ida (Hurricane)
  • 2021-08-22: Hurricane Henri (Hurricane)

OpenFEMA disaster declarations summaries.

Getting there and nearby towns

Long Island MacArthur Airport (ISP) is the nearest airport with scheduled flights listed in OpenStreetMap, 6 miles away.

Drive times are estimates from straight-line distance, not routes.

Reviews, tips and questions

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Sources and licences

Photo credits

Page built October 30, 2026. Spotted a mistake? Tell us or suggest a place.