Sea Cliff, NY demographics:
population, income, and more

Total population
5,033
-0.1% year-over-year change
Median household income
$193,590/yr
4.3% year-over-year change
Housing units
1,963
-0.7% year-over-year change

Sea Cliff population

How many people live in Sea Cliff

Sea Cliff is home to 5,033 residents, according to the most recent Census data. Gender-wise, 44.4% of Sea Cliff locals are male, and 55.6% are female.

Total population
5,033
-0.1% year-over-year change
Gender ratio
Male
44.4%
2,235
Female
55.6%
2,798
Value Percent YoY change
Male 2,235 44.4% -0.8%
Female 2,798 55.6% 0.5%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Sea Cliff is 40, with the population distributed as follows: about 22.7% are children under 15, then 11% are in the 15 to 24 age group. Adults between 25 and 44 make up 18.7% of the population, while another 28.7% fall into the 45 to 64 bracket. Finally, around 18.9% are 65 or older.

Median age
40.5
Age breakdown
Under 15
22.7%
15 to 24
11%
25 to 44
18.7%
45 to 64
28.7%
Over 65
18.9%
Value Percent YoY change
Under 15 1,144 22.7% -4.4%
15 to 24 555 11% 21.4%
25 to 44 939 18.7% -2.9%
45 to 64 1,443 28.7% -1.0%
Over 65 952 18.9% -0.6%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Sea Cliff, 89.3% of the population are US-born citizens, while 9.2% have gained naturalized citizenship. At the same time, 1.5% of residents are non-citizens. As for race, 85.2% of locals are Caucasian, 1.1% are African American and 0.6% have Asian roots. There’s also a share of 10.8% that includes residents with two or more races.

Citizenship
U.S.-born citizens
89.3%
Non-U.S.-born citizens
9.2%
Non-citizens
1.5%
Value Percent YoY change
U.S.-born citizens 4,495 89.3% 1.6%
Non-U.S.-born citizens 461 9.2% -12.7%
Non-citizens 77 1.5% -7.2%
Racial breakdown
White
85.2%
Black or African American
1.1%
American Indian and Alaska Native
0%
Asian
0.6%
Native Hawaiian and other Pacific Islander
0%
Two or more races
10.8%
Other
2.4%
Value Percent
White 4,286 85.2%
Black or African American 55 1.1%
Asian 30 0.6%
Two or more races 541 10.8%
Other 121 2.4%

Households in Sea Cliff

A peek inside Sea Cliff households

Sea Cliff has 1,769 households, with an average of 3 members in each. Of these, 76.3% are families, while the remaining 23.7% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
1,769
0.6% year-over-year change
Average people per household
3
Non-family households
419
Family households
1,350
Value Percent YoY change
Non-family households 419 23.7% -8.7%
Family households 1,350 76.3% 3.9%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Sea Cliff

The housing landscape of Sea Cliff

Sea Cliff's housing consists of 1,963 units, with 80.3% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 3.3% and offer a more compact, shared living style.

Housing units
1,963
-0.7% year-over-year change
Housing types
Value Percent
1 unit, detached 1,576 80.3%
1 unit, attached 64 3.3%
2 units 162 8.2%
3 or 4 units 112 5.7%
5 to 9 units 49 2.5%
Homes built since 2020
26
136.4% year-over-year change

The age of buildings in Sea Cliff

In Sea Cliff, the median construction year is 1938. About 56.8% of homes were built before the 1940s, with another 4.2% going up by 1949. Most development happened in the second half of the 20th century. Then, 0.4% of homes were added from 2000 to 2009, 1.7% between 2010 and 2019, and 1.3% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 1,116 56.8% 4.5%
Built between 1940 and 1949 83 4.2% -9.8%
Built between 1950 and 1959 325 16.6% -19.9%
Built between 1960 and 1969 237 12.1% 6.3%
Built between 1970 and 1979 68 3.5% -11.7%
Built between 1980 and 1989 68 3.5% 51.1%
Built between 2000 and 2009 7 0.4% 0.0%
Built between 2010 and 2019 33 1.7% -19.5%
Built in 2020 or later 26 1.3% 136.4%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Sea Cliff occupancy rates

Out of the 1,769 occupied housing units in Sea Cliff, 77.3% are owner-occupied, while 22.7% are lived in by tenants. Meanwhile, 9.9% of all homes on the local market sit vacant.

Occupied housing units
1,769
0.6% year-over-year change
Occupancy breakdown
Renter occupied
402
Owner occupied
1,367
Value Percent YoY
change
Renter occupied 402 22.7% 26.4%
Owner occupied 1,367 77.3% -5.1%
Unoccupied housing units
9.9%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Sea Cliff housing costs

Housing costs in Sea Cliff come to a median of $3,704 per month, while tenants specifically pay a median gross rent of $2,315.

Median housing costs per month
$3,704/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Sea Cliff
$2,315/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Sea Cliff

Sea Cliff education at a glance

About 22% of the population in Sea Cliff went to high school, while 9.4% pursued college studies. Another 7.2% earned an associate degree and 28.5% hold a bachelor’s. Meanwhile, 31.4% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 52 1.4% 36.8%
High school diploma 815 22% 3.2%
College diploma 347 9.4% 0.6%
Associate degree 267 7.2% 7.7%
Bachelor's degree 1,053 28.5% 5.8%
Graduate degree 1,162 31.4% -7.0%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Sea Cliff

How much people earn in Sea Cliff

The average annual household income in Sea Cliff was $279,873 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +1.3% change from the previous year. At the same time, the median income stood at $193,590, reflecting a +4.3% shift over the same period.

Average household income in Sea Cliff
$279,873/year
1.3% year-over-year change
Median household income in Sea Cliff
$193,590/year
4.3% year-over-year change

Sea Cliff income by age

In Sea Cliff, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $250,001. Those with someone between 45 and 64 in charge, often well established professionally, earn $195,208 overall. Overall, 99.1% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $250,001 0.0%
45 - 64 $195,208 7.5%
Over 65 $120,781 2.1%
Above poverty level
4,933
Below poverty level
47
Value Percent YoY
change
Above poverty level 4,933 99.1% 0.6%
Below poverty level 47 0.9% -39.7%

Average renter income in Sea Cliff

To get a better sense of what renters earn on average in Sea Cliff, their median household income was $80,000 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 34.7%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$80,000
Rent-to-income ratio
34.7%
Understanding the rent-to-income ratio can help renters gauge if local housing costs align with their earnings. A ratio under 30% usually signals affordability, while exceeding this mark means rent is taking a larger-than-recommended bite out of income. That could make it harder for you to cover other costs like transportation, healthcare, or child care.

Employment in Sea Cliff

Workforce and job types in Sea Cliff

The job market in Sea Cliff is powered by 2,332 working residents, spread across a range of industries and roles. 92.7% of the working population are employed in professional or administrative positions, while 7.3% are in hands-on or service-based jobs. Also, 18.7% run their own businesses, 52.9% are employed by private companies, and 18.5% work in the public sector.

Workforce demographics

Working population
2,332
0.8% year-over-year change
White collar
2,161
Blue collar
171
Value Percent YoY change
White collar 2,161 92.7% 1.9%
Blue collar 171 7.3% -11.4%
Employer type
Self employees
18.7%
Private companies
52.9%
Governmental workers
18.5%
Not for profit companies
9.9%
Value Percent YoY change
Self employees 437 18.7% 23.8%
Private companies 1,234 52.9% 4.8%
Governmental workers 431 18.5% -14.7%
Not for profit companies 230 9.9% -17.6%
Unemployment rate
13.5%
7.1% year-over-year change

Available workforce

The unemployment rate in Sea Cliff stands at 13.5%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Sea Cliff

How people get around in Sea Cliff

Commuting methods vary: 59.4% of residents travel by personal vehicle and 2.6% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 1,373 59.4% -10.0%
Taxicab 1 0% 0.0%
Subway or elevated 111 4.8% N/A
Railroad 115 5% -3.4%
Bicycle 14 0.6% 16.7%
Walk 59 2.6% 20.4%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Sea Cliff by zipcode?

Zipcode Population Number of households Median income Average income
11579 5,033 1,769 $193,590 $279,873

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FAQs about Sea Cliff demographics 

What is the total population of Sea Cliff?

Sea Cliff has a total population of 5,033 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -0.1% compared to a year ago.

What is the gender ratio in Sea Cliff?

The gender ratio in Sea Cliff is as follows:
  • 44.4% males (2,235 residents)
  • 55.6% females (2,798 residents)

What is the median age in Sea Cliff?

The median age in Sea Cliff is 40.5.

What is the age distribution of the population in Sea Cliff?

The age distribution in Sea Cliff is as follows:
  • Under 15: 22.7% (1,144 residents)
  • Ages 15-24: 11% (555 residents)
  • Ages 25-44: 18.7% (939 residents)
  • Ages 45-64: 28.7% (1,443 residents)
  • Over 65: 18.9% (952 residents)

What is the racial and ethnic makeup of Sea Cliff?

The racial and ethnic makeup of Sea Cliff is as follows:
  • White: 85.2% (4,286 residents)
  • Black or African American: 1.1% (55 residents)
  • American Indian and Alaska Native: 0% (0 residents)
  • Asian: 0.6% (30 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 10.8% (541 residents)
  • Other: 2.4% (121 residents)

What percentage of the population in Sea Cliff are U.S.-born citizens?

U.S.-born citizens represent 89.3% of the population in Sea Cliff.

How many housing units are there in Sea Cliff?

There are 1,963 housing units in Sea Cliff, reflecting a -0.7% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Sea Cliff and what is the average household size?

Sea Cliff has a total of 1,769 households, with an average of 3 people in each.

What is the median household income in Sea Cliff?

Sea Cliff has a median household income of $193,590, representing a +4.3% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Sea Cliff?

The employment rate is 86.5% in Sea Cliff, with a workforce of 2,332 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 92.7% (2,161 residents)
  • Blue-collar workers: 7.3% (171 residents)

Places of employment:
  • Self-employed: 18.7% (437 residents)
  • Private companies: 52.9% (1,234 residents)
  • Governmental workers: 18.5% (431 residents)
  • Not-for-profit companies: 9.9% (230 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025