Mount Sinai, New York

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Mount Sinai, New York

Introduction to Mount Sinai, New York

Mount Sinai, New York, in Suffolk County, is 16 miles NE of Brentwood, New York and 51 miles E of New York, New York. The town contains a population of approximately 8,734.

Mount Sinai History

Colonial settlers purchased land from Native Americans and established a community here in 1664. At that time, the area was referred to as Old Mans. A number of farms and businesses were soon set up in the area. In 1840, when the residents wanted to establish a post office in the community, its name was changed from Old Mans to Mt. Vernon. However, since another town of the same name already existed in New York, Charles Phillips, the town’s first postmaster, named the community Mount Sinai after the biblical location. Until the 1960s, farming was the main occupation of the residents of Mount Sinai. The community's economy is also dependent on shipping and other trades and commerce.

Mount Sinai and nearby Attractions

  • Long Island Maritime Museum
  • Jennings Beach
  • Walt Whitman Birthplace State Historic Park
  • Cedar Beach
  • Fire Island National Seashore
  • Atlantis Marine World Aquarium

Things To Do In Mount Sinai

Mount Sinai offers access to Jennings Beach and Cedar Beach. The Long Island Museum, the Suffolk County Historical Society, the Suffolk County Vanderbilt Museum, and the Long Island Maritime Museum are the local museums. Eagles Nest, which is the estate of William K. Vanderbilt, is a historic site located nearby. The Fire Island National Seashore features over 30 miles of beach, public marinas, nature trails and camping facilities. Sherwood Island State Park, located on Long Island Sound, also includes a beach, a nature center, picnic areas and nature trails. Visitors can also enjoy fishing, swimming and scuba diving here. Local golfers can enjoy a round at the Spring Lake Golf Club or at the Great Rock Golf Club.

Mount Sinai Transportation

Long Island Mac Arthur is the closest major airport.

Mount Sinai Higher Education

Nearby colleges include Suffolk County Community College-Ammerman Campus, Saint Josephs College-Suffolk Campus, Sacred Heart University and Dowling College.

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High Points

Mount Sinai strengths, compared to Peers (similar size places nationally) or State (other places in New York):

Category Trophy
People in Middle Class or Better
(vs. Peers)
Top 5% trophy Mount Sinai People in Middle Class or Better
Median Family Income
(vs. Peers)
Top 8% Mount Sinai Median Family Income
Public Transportation Use
(vs. Peers)
Top 11% Mount Sinai Public Transportation Use
Low Rate of Poverty
(vs. Peers)
Top 17% Mount Sinai Low Rate of Poverty

Comparative Profile of Mount Sinai, New York

Comparing Mount Sinai to similar size places nationwide (Peers) and to other places in New York (State):

Ratings range from 1 (lowest) to 10 (highest).

The People

Characteristic Compared
to Peers
to State
Male Share of the Population 7 7
Well-Paid Single Men 7 6
Children Under 5 Years Old 7 8
Well-Paid Single Women 7 6
Age of the Population 5 3
Racial Diversity 5 6
Female Share of the Population 4 4
Senior Citizens 2 1


Characteristic Compared
to Peers
to State
Portion of People Married 10 10
Average Household Size 10 10


Characteristic Compared
to Peers
to State
People in Middle Class or Better 10 10
Median Family Income 10 9
People Above Poverty 9 8
College Educated Adults 8 7

Commute & Sprawl

Characteristic Compared
to Peers
to State
Public Transportation Use 9 8
Working at Home 6 5
Walking and Biking to Work 1 2
Short Commute Times 1 2


Characteristic Compared
to Peers
to State
Seasonal and Vacation Housing 8 7
Housing Recently Built 8 10
Affordability of Rents 1 2
Studio & One-Bedroom Rentals 1 2
Affordability of Property Taxes 1 2
People Living Alone 1 1

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Mount Sinai Almanac

Category Value
Nearest Medium City 16 miles NE of Brentwood, New York (center to center)
Nearest Large City 51 miles E of New York, New York
County Suffolk
Standard Zip Codes 11766
Phone Area Codes 631
Time Zone Eastern (-5 hours from GMT)
Daylight Savings The city observes Daylight Saving Time.
Latitude 40.946
Longitude -73.03

Mount Sinai Climate

Nearest Weather Stations

  • Temp ranges are avg daily min and max for the month
  • Precipitation is rainfall (and rainfall equiv of snowfall)
Distance 3.9 miles
Jan Temp 25 to 40 F
Apr Temp 40 to 61 F
Jul Temp 65 to 84 F
Oct Temp 47 to 66 F
Annual Precip 45.7 inches
Distance 10.3 miles
Jan Temp 22 to 39 F
Apr Temp 39 to 59 F
Jul Temp 64 to 83 F
Oct Temp 45 to 64 F
Annual Precip 50.2 inches
Distance 16.1 miles
Jan Temp 23 to 37 F
Apr Temp 41 to 57 F
Jul Temp 66 to 82 F
Oct Temp 46 to 63 F
Annual Precip 44.1 inches
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Mount Sinai Population (2000)

Category Count Percent
Total Population 8,734 100%
Male 4,265 48.8%
Female 4,469 51.2%
Under 18 2,624 30%
18+ 6,110 70%
65+ 782 9%
Median Age 36
Average Family Size 3.54
White 8,314 95.2%
African-American 112 1.3%
Asian 130 1.5%
American Indian & Alaskan 7 0.1%
Other 82 0.9%
Mixed Race 86 1%
Hispanic (included in categories above) 364 4.2%

Mount Sinai Ancestry

(From 2000 Census, as reported by individuals)

Note: This is national, not racial, ancestry, so, e.g., the Census doesn't have categories for Hispanic and African-American people. CityTownInfo is currently gathering additional ancestry data for this site.
Ancestry Percent
Italian 36.2%
Irish 19.4%
German 10.5%
Other (often includes Hispanic and African American) 7.1%
Polish 4.3%
US/American 3.6%
English 3.2%
Russian 3.1%
Greek 2.1%
Norwegian 1.1%
Austrian 1%
Swedish 0.9%
Scotch-Irish 0.9%
French (except Basque) 0.8%
Scottish 0.7%
Ukrainian 0.6%
Dutch 0.5%
French Canadian 0.5%
Hungarian 0.4%
Eastern European 0.4%
Armenian 0.3%
Arab/Arabic 0.3%
Canadian 0.3%
Australian 0.2%
Haitian 0.2%
Romanian 0.2%
Swiss 0.2%
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Nearby Cities and Towns

Location Pop. Median Family
Income (2000)
Mount Sinai 8,734 $89,636
Belle Terre 832 $144,708
Miller Place 10,580 $87,656
Poquott 975 $116,379
Port Jefferson 7,837 $83,981
Port Jefferson Station 7,527 $63,185
Terryville 10,589 $71,160
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Featured Colleges in the Mount Sinai Area (QuickSchools™)

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Mount Sinai High Schools (2004)

Title I eligible, not participating.
Serves 715 students.

Mount Sinai Colleges

(List of New York Colleges)

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City, State Similarity   1 Person Houses 65+ College Grads Commute Minutes Family Income Kids 0-4 Non White Pop. Poverty Prop. Crime Seasonal Housing Viol. Crime
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