Townapedia
朗康科馬湖
朗康科馬湖 · Vitsuha, CC0
Lake Ronkonkoma Ducks - panoramio
Lake Ronkonkoma Ducks - panoramio · dans362, CC BY 3.0
Bald Hill Schoolhouse
Bald Hill Schoolhouse · DanTD, CC BY-SA 3.0
Halliock Inn; Village of the Branch-2
Halliock Inn; Village of the Branch-2 · DanTD, CC BY-SA 3.0
At Long Island 2024 024
At Long Island 2024 024 · Photograph by Mike Peel ( www.mikepeel.net )., CC BY-SA 4.0
At Long Island 2024 027
At Long Island 2024 027 · Photograph by Mike Peel ( www.mikepeel.net )., CC BY-SA 4.0

Lake Ronkonkoma, New York

Lake Ronkonkoma is a community of 18,221 people in Suffolk County, New York.

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Population18,221 -11.8% since 2019
Elevation72 ft 22 m
Land area4.5 sq mi
ZIP codes11767, 11779
Nearest airportLong Island MacArthur Airport (ISP) 2 mi

Why visit Lake Ronkonkoma

Townapedia lists 6 museums and landmarks, 15 parks and trails, 43 places to eat, 2 places to stay and 2 attractions in and around town.

Highlights include Spaceplex, Regal Ronkonkoma, Bald Hill Schoolhouse and Halliock Inn.

July is the warmest month, with average highs of 83°F; January lows average 25°F, and about 32 inches of snow fall in a normal year.

About Lake Ronkonkoma

Lake Ronkonkoma is a hamlet and census-designated place (CDP) in Suffolk County, on Long Island, in New York, United States. The population was 18,619 at the time of the 2020 census.

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

Things to do2

Spaceplex

Monument and historic site · 2.9 mi

Indoor amusement park and arcade in New York, US

Open in Google Maps · Wikipedia

Regal Ronkonkoma

Cinema and theater · 1.0 mi

565 Portion Road, Lake Ronkonkoma

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Museums and landmarks6

Bald Hill Schoolhouse

Monument and historic site · National Register of Historic Places · 3.7 mi

Building in New York, United States

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Halliock Inn

Monument and historic site · National Register of Historic Places · 3.9 mi

Historic commercial building in New York, United States

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Islandia Veterans Memorial Triangle

Monument and historic site · 3.4 mi

Park and veterans memorial in Islandia, New York, United States

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Historic Lake Towers Hotel

Monument and historic site · 0.5 mi

Ruins of the hotel's stairway and patio.

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Lake Ronkonkoma Historical Society

Museum · 0.7 mi

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Lt. Michael P. Murphy Memorial

Monument and historic site · 0.6 mi

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Parks, trails and playgrounds15

Raynor Beach County Park

Park · 0.6 mi

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Lake Ronkonkoma Boat Launch

Marina and boat launch · 0.8 mi

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9/11 Responders Remembered Park

Park · 1.1 mi

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Cuebas Pond

Park · 1.4 mi

Koi Pond

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Dorchester Park

Park · 1.4 mi

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Francis P. Kelly Memorial Park

Park · 0.9 mi

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Gibbs Pond Park / Andreoli Park

Park · 1.6 mi

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Lake Ronkonkoma County Park

Park · 0.9 mi

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Larry's Landing

Park · 0.4 mi

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Lt. Michael P. Murphy Memorial Park

Park · 0.7 mi

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Manhunt Field

Park · 1.3 mi

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3 more on the map.

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Restaurants and cafes43

Gino's of Ronkonkoma

Restaurant · Pizza, Italian · 0.5 mi

214 Portion Road, Lake Ronkonkoma

Mo-Su 11:00-21:00

Open in Google Maps · +16315889874

Maria's

Restaurant · Mexican · 2.0 mi

211 Smithtown Boulevard, Nesconset

Mo-Th 11:30-22:00; Fr 11:30-23:00; Sa 13:00-23:00; Su 13:00-22:00

Open in Google Maps · +1-631-979-7724

Phayathai Restaurant

Restaurant · Thai · 0.4 mi

735 Hawkins Avenue, Lake Ronkonkoma

Mo-Th 11:30-20:30; Fr 11:30-21:30; Sa 12:00-21:30; Su 12:00-20:30

Open in Google Maps · +1-631-981-0303

Red Lobster

Restaurant · Seafood · 1.4 mi

5010 Expressway Drive South, Lake Ronkonkoma

Mo-Th, Su 11:00-22:00; Fr-Sa 11:00-23:00

Open in Google Maps · +1 631-580-2864

Redefine Meals

Restaurant · American, Italian, Mexican, Asian · 0.5 mi

781 Hawkins Avenue, Lake Grove

Mo-Su 08:00-22:00

Open in Google Maps · +1-631-285-3669

Redefine Meals

Restaurant · Italian, Mexican, American, Asian · 1.6 mi

1015 Hawkins Avenue, Lake Grove

Mo-Su 08:00-22:00

Open in Google Maps · +1-631-648-9796

The Corner Cafe

Restaurant · 2.0 mi

Restaurant, Burger , Breakfast, Lunch, Dinner, Sandwich , Brunch, Catering , Family Restaurant , American Food

204 Smithtown Blvd, Nesconset

Su-Tu 07:00-15:00; We-Sa 07:00-20:00

Open in Google Maps · +1-631-265-5267

Redefine Meals

Restaurant · 1.5 mi

1 Hawkins Avenue, Ronkonkoma

Mo-Su 08:00-22:00

Open in Google Maps · +1-631-285-3666

Albert's Pizza

Restaurant · Pizza · 1.3 mi

601 Portion Road, Lake Ronkonkoma

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Big Time Bagels

Restaurant · Bagel · 1.3 mi

601 Portion Road, Lake Ronkonkoma

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Dah Lee

Restaurant · Chinese · 0.9 mi

90 Church Street, Lake Ronkonkoma

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IHOP

Restaurant · Breakfast, Pancake · 0.7 mi

339 Portion Road, Lake Ronkonkoma

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31 more on the map.

History

The actual lake, Lake Ronkonkoma, adjacent to the CDP, is the largest lake on Long Island. The land surrounding one side of the lake is in the jurisdiction of the Town of Islip. The elevation of the lake surface is given as 55 feet (17 m) on the most recent USGS map, but as the lake is a "groundwater lake", not fed by streams, it has no surface outlet and its water surface reflects the current level of the local water table. This can undergo significant changes over time, and the lake level experiences slow periods of rise and fall. In the late 1960s it was quite low; after several intermediate changes in level, in 2007 the lake was higher than at any time since, with a difference of well over 5 feet (1.5 m) between the 1960s low and the 2007 high.

As a result of the lake's existence, Lake Ronkonkoma was once a resort town, until the area experienced a population explosion in the mid-20th century. Remnants of old resorts and hotels can still be seen around the lake's shores. Many summer cottages and bungalows from that period remain, now converted to year-round use.

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

Where to stay2

Churches and places of worship12

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Shopping10

Gas and EV charging8

Schools, colleges and libraries52

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Healthcare6

Map of Lake Ronkonkoma

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

Climate by month

20°40°60°80°January: 3.7 in of rainFebruary: 3.3 in of rainMarch: 4.5 in of rainApril: 4.1 in of rainMay: 3.3 in of rainJune: 4.0 in of rainJuly: 3.3 in of rainAugust: 4.2 in of rainSeptember: 3.6 in of rainOctober: 4.0 in of rainNovember: 3.4 in of rainDecember: 4.7 in of rainJanuary: 39°FFebruary: 41°FMarch: 48°FApril: 58°FMay: 68°FJune: 77°FJuly: 83°FAugust: 81°FSeptember: 75°FOctober: 64°FNovember: 54°FDecember: 44°FJanuary: 25°FFebruary: 26°FMarch: 32°FApril: 41°FMay: 51°FJune: 61°FJuly: 67°FAugust: 66°FSeptember: 59°FOctober: 47°FNovember: 38°FDecember: 30°FJFMAMJJASOND
Average high Average low Rain
Monthly table
MonthHighLowRainSnow
Jan39°F25°F3.7 in10.3 in
Feb41°F26°F3.3 in9.4 in
Mar48°F32°F4.5 in6.5 in
Apr58°F41°F4.1 in0.6 in
May68°F51°F3.3 in0.0 in
Jun77°F61°F4.0 in0.0 in
Jul83°F67°F3.3 in0.0 in
Aug81°F66°F4.2 in0.0 in
Sep75°F59°F3.6 in0.0 in
Oct64°F47°F4.0 in0.0 in
Nov54°F38°F3.4 in0.5 in
Dec44°F30°F4.7 in4.5 in

U.S. Climate Normals 1991-2020 for Islip Li Macarthur Ap 72505 (3 mi away), NOAA NCEI.

People and cost of living

$101,633median household income
$525,000median home value
$2,170median monthly rent
42.6median age
34.1%of adults have a bachelor's degree or higher
69.6%of homes are owner-occupied
28.3 minaverage commute
Age of residents
Under 1820%18 to 3423%35 to 6439%65 and over19%

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, 2 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.