Sea Cliff is a village located in Nassau County, New York. Sea Cliff has a 2025 population of 4,951. Sea Cliff is currently declining at a rate of -0.44% annually and its population has decreased by -2.15% since the most recent census, which recorded a population of 5,060 in 2020.
The average household income in Sea Cliff is $276,255 with a poverty rate of 1.56%.The median age in Sea Cliff is 41.3 years: 47.2 years for males, and 37.9 years for females.
Data after 2023 is projected based on recent change
The racial composition of Sea Cliff includes 89.54% White, and smaller percentages for other race, Asian, Black or African American and multiracial populations.
Race | Population | Percentage (of total) |
---|---|---|
White | 4,510 | 89.54% |
Two or more races | 359 | 7.13% |
Other race | 71 | 1.41% |
Asian | 68 | 1.35% |
Black or African American | 29 | 0.58% |
Married
Widowed
Divorced
Separated
Never Married
Sea Cliff's average per capita income is $90,875. Household income levels show a median of $185,650. The poverty rate stands at 1.56%.
Name | Median | Mean |
---|---|---|
Married Families | $250,001 | - |
Families | $233,125 | $336,360 |
Households | $185,650 | $276,255 |
Non Families | $75,298 | $103,638 |
Average Income
Median Household Income
Poverty Rate