Sea Cliff is a city located in Nassau County New York. Sea Cliff has a 2024 population of 4,948. Sea Cliff is currently declining at a rate of -0.56% annually and its population has decreased by -2.25% since the most recent census, which recorded a population of 5,062 in 2020.
The average household income in Sea Cliff is $285,818 with a poverty rate of 1.97%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Sea Cliff is 42.7 years, 47.2 years for males, and 39.1 years for females.
According to the most recent ACS, the racial composition of Sea Cliff was:
White
Two or more races
Other race
Asian
Black or African American
Native American
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 1,828 | 2.74 | 82.3 | 17.7 |
| Married | 1,152 | 3.4 | 92.2 | 7.8 |
| Non Family | 480 | 1.19 | 63.8 | 36.3 |
| Female | 113 | 2.25 | 68.1 | 31.9 |
| Male | 83 | 3.31 | 71.1 | 28.9 |
3.26
Average Family Size
2.74
Average Household Size
82.3%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
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%.
All
Male
Female
$82,388
Average Earnings
$128,542
Average Male
$68,681
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
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.
rate
1.97%
Overall Poverty Rate
2.13%
Male Poverty Rate
1.84%
Female Poverty Rate
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%.
Married
Widowed
Divorced
Separated
NeverMarried
61.3%
Overall Marriage Rate
65.7%
Male Marriage Rate
57.5%
Female Marriage Rate
male
female
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.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
0%
Veteran Poverty Rate
63.89%
Veteran Disability Rate
LaborForceParticipation
70.4%
Labor Force Participation
61.8%
Employment Rate
12.2%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
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.
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
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.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2029 | 4,805 | -29 | -0.6% |
| 2028 | 4,834 | -28 | -0.58% |
| 2027 | 4,862 | -29 | -0.59% |
| 2026 | 4,891 | -28 | -0.57% |
| 2025 | 4,919 | -29 | -0.59% |
| 2024 | 4,948 | -28 | -0.56% |
| 2023 | 4,976 | -29 | -0.58% |
| 2022 | 5,005 | -42 | -0.83% |
| 2021 | 5,047 | -15 | -0.3% |
| 2020 | 5,062 | 43 | 0.86% |
| 2019 | 5,019 | -10 | -0.2% |
| 2018 | 5,029 | -11 | -0.22% |
| 2017 | 5,040 | -2 | -0.04% |
| 2016 | 5,042 | 1 | 0.02% |
| 2015 | 5,041 | -4 | -0.08% |
| 2014 | 5,045 | 2 | 0.04% |
| 2013 | 5,043 | 4 | 0.08% |
| 2012 | 5,039 | 5 | 0.1% |
| 2011 | 5,034 | 14 | 0.28% |
| 2010 | 5,020 | -46 | -0.91% |
| 2000 | 5,066 | 12 | 0.24% |
| 1990 | 5,054 | -310 | -5.78% |
| 1980 | 5,364 | -526 | -8.93% |
| 1970 | 5,890 | 221 | 3.9% |
| 1960 | 5,669 | 801 | 16.45% |
| 1950 | 4,868 | 452 | 10.24% |
| 1940 | 4,416 | 960 | 27.78% |
| 1930 | 3,456 | 0 | 0% |