Sea Cliff, New York Population 2024

4,973

Sea Cliff is a city located in Nassau County New York. Sea Cliff has a 2024 population of 4,973. Sea Cliff is currently declining at a rate of -0.44% annually and its population has decreased by -1.72% since the most recent census, which recorded a population of 5,060 in 2020.

The average household income in Sea Cliff is $285,818 with a poverty rate of 1.97%. The median age in Sea Cliff is 42.7 years: 47.2 years for males, and 39.1 years for females.

Sea Cliff Demographics

According to the most recent ACS, the racial composition of Sea Cliff was:

  • White: 91.62%
  • Two or more races: 5.2%
  • Other race: 1.36%
  • Asian: 1.03%
  • Black or African American: 0.79%
  • Native American: 0%
  • Native Hawaiian or Pacific Islander: 0%
Land Area (mi²)
1.1 sq mi
Density (mi²)
4,460.80/sq mi
Growth Since 2020
-1.72% (-87)
The current population of Sea Cliff, New York is 4,973 based on our projections of the latest US Census estimates (released May 2024). The last official US Census in 2020 recorded the population at 5,060.

Population by Race

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Race
Population
Percentage (of total)
White4,63891.62%
Two or more races2635.2%
Other race691.36%
Asian521.03%
Black or African American400.79%
Native American00%
Native Hawaiian or Pacific Islander00%

White

Two or more races

Other race

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

Sea Cliff Population by Race

Sea Cliff Population Pyramid 2024

Sea Cliff Median Age

42.7

Total

47.2

Male

39.1

Female

Sea Cliff Adults

There are 3,740 adults, (985 of whom are seniors) in Sea Cliff.

Sea Cliff Age Dependency

83.7

Age Dependency Ratio

35.8

Old Age Dependency Ratio

48

Child Dependency Ratio

Sea Cliff Sex Ratio

Female2,83556.01%
Male2,22743.99%

Sea Cliff Population by Age

Sea Cliff Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All1,8282.7482.317.7
Married1,1523.492.27.8
Non Family4801.1963.836.3
Female1132.2568.131.9
Male833.3171.128.9

3.26

Average Family Size

2.74

Average Household Size

82.3%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Sea Cliff Households and Families

Male

Female

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Education Attained
Count
Percentage
9th to 12th Grade421.2%
Associates Degree2406.87%
Bachelors Degree88625.36%
Graduate Degree1,20534.49%
High School Graduate69519.89%
Less Than 9th Grade561.6%
Some College37010.59%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Sea Cliff Educational Attainment by Sex (over 25)

Sea Cliff Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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Race
Total
High School
Bachelors
White3,1873,0991,900
Hispanic159159100
2+ Races138138138
Asian423325
Black383710
Other Race24240

The highest rate of high school graduation is among other race people with a rate of 100%.

The highest rate of bachelors degrees is among 2+ races people with a rate of 100%.

Sea Cliff Educational Attainment by Race

All

Male

Female

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Name
Average
Male
Female
Bachelors Degree$81,923$138,430$69,167
Graduate Degree$102,302$117,375$101,250
High School Graduate$28,998$0$29,131
Less Than 9th Grade$0$0$0
Overall$82,388$128,542$68,681
Some College$0$0$0

$82,388

Average Earnings

$128,542

Average Male

$68,681

Average Female

Sea Cliff Earnings by Educational Attainment

Sea Cliff Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Sea Cliff Language

86.22% of Sea Cliff residents speak only English, while 13.78% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 8.18% of the population.

Sea Cliff Language

Sea Cliff Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White4,514982.17%
Black3812.63%

1.97%

Overall Poverty Rate

2.13%

Male Poverty Rate

1.84%

Female Poverty Rate

Poverty in Sea Cliff

The race most likely to be in poverty in Sea Cliff is Black, with 2.63% below the poverty level.

The race least likely to be in poverty in Sea Cliff is White, with 2.17% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0%. Among those working part-time, it was 2.18%, and for those that did not work, the poverty rate was 7.22%.

Sea Cliff Poverty

rate

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Rate
Poverty
Less Than 9th Grade6.12%
High School4.6%
Bachelors or Greater2.15%
Some College0.16%

Sea Cliff Poverty Rate by Education

rate

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Rate
Poverty
Male Employed1.25%
Male Unemployed0%
Female Employed0%
Female Unemployed0%

Sea Cliff Poverty Rate by Employment Status and Sex

Sea Cliff Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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Name
Median
Mean
Families$208,750$317,638
Households$181,375$285,818
Married Families$248,000$-999,999,999
Non Families$79,063$194,867

mean

median

Income by Household Type

Sea Cliff Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

61.3%

Overall Marriage Rate

65.7%

Male Marriage Rate

57.5%

Female Marriage Rate

Sea Cliff Married by Age and Sex

male

female

Sea Cliff Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.

Sea Cliff Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Sea Cliff Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

108

Number of Veterans

108

Male Veterans

0

Female Veterans

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War
Veterans
Vietnam69
Korea16
World War II13
Second Gulf War10
First Gulf War10

Sea Cliff Veterans by War

count

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Age Group
Veterans
75+60
65 to 7438
35 to 5410
18 to 340
55 to 640

Sea Cliff Veterans by Age

count

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Name
Veterans
% of Total
White1083.13%

Sea Cliff Veterans by Race

Sea Cliff Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

0%

Veteran Poverty Rate

63.89%

Veteran Disability Rate

Sea Cliff Veterans by Education

LaborForceParticipation

70.4%

Labor Force Participation

61.8%

Employment Rate

12.2%

Unemployment Rate

Sea Cliff Employment by Age

LaborForceParticipation

Sea Cliff Employment by Race

LaborForceParticipation

Sea Cliff Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

74.65%

Born in Sea Cliff

88.84%

Native Born

11.16%

Foreign Born

1.22%

Non Citizen

9.94%

Naturalized

Place of Birth

88.84% of Sea Cliff residents were born in the United States, with 74.65% having been born in New York. 1.22% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Sea Cliff Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
20294,864-22-0.45%
20284,886-22-0.45%
20274,908-21-0.43%
20264,929-22-0.44%
20254,951-22-0.44%
20244,973-22-0.44%
20234,995-14-0.28%
20225,009-39-0.77%
20215,048-12-0.24%
20205,060410.82%
20195,019-10-0.2%
20185,029-11-0.22%
20175,040-2-0.04%
20165,04210.02%
20155,041-4-0.08%
20145,04520.04%
20135,04340.08%
20125,03950.1%
20115,034140.28%
20105,02000%
20005,066120.24%
19905,054-310-5.78%
19805,364-526-8.93%
19705,8902213.9%
19605,66980116.45%
19504,86845210.24%
19404,41696027.78%
19303,456-1,408-28.95%
showing: 28 rows

Sea Cliff Population by Year