Seaford, New York Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Seaford, New York is 15,884 as of the 2023 American Community Survey, making it the 122nd-largest city in New York. The median household income is $156,488, the median home value is $631,000, and the median age is 40.4.
15,884
Population
6086
People / sq mi
$156,488
Median Income
$631,000
Median Home Value
Seaford covers 2.6 sq mi of land at 6086 people per square mile.
About Seaford, NY
Seaford is a city in New York with a population of 15,884. It ranks #122 among cities in New York by population. The median age is 40.4, older than the national median. The population is 50.6% male and 49.4% female.
The median household income in Seaford is $156,488, above the US median of $74,580. 1.7% of residents live below the federal poverty level. Home values sit at a median of $631,000, with monthly rent averaging $2,612. The homeownership rate of 93.4% is higher than the national rate of 64.8%.
Educational attainment in Seaford reflects 43.6% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 9.9% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 38.8 minutes each way.
Race & Ethnicity
| White | 87.2% |
| Black or African American | 2.4% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.4% |
| Two or More Races | 0.0% |
Economy & Income
$156,488
Median Household Income
$61,645
Per Capita Income
1.7%
Poverty Rate
4.0%
Unemployment Rate
Housing
$631,000
Median Home Value
$2,612
Median Rent
93.4%
Owner-Occupied
Education
96.5%
High School+
43.6%
Bachelor's+
Commute
17.2%
Drive Alone
65.6%
Public Transit
9.9%
Work From Home
38.8 min
Avg Commute
Community Profile
5.0%
Foreign Born
88.0%
Non-English at Home
3.7%
Veterans
8.1%
With Disability
98.2%
Health Insurance
96.4%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 27.6% |
| Finance, Insurance & Real Estate | 15.0% |
| Construction | 9.3% |
| Information | 7.9% |
| Education, Health Care & Social Services | 7.8% |
| Public Administration | 6.9% |
| Manufacturing | 5.0% |
| Transportation & Warehousing | 4.2% |
| Retail Trade | 4.1% |
| Arts, Entertainment & Food Services | 2.7% |
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Part of New York
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City rankings
Frequently Asked Questions
Seaford, New York has a population of 15,884 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 122nd-largest city in New York.
The median household income in Seaford, New York is $156,488, with 1.7% of residents living below the federal poverty level.
The median home value in Seaford, New York is $631,000, with median monthly rent at $2,612 and a homeownership rate of 93.4%.
The median age in Seaford, New York is 40.4 years. The population is 50.6% male and 49.4% female.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.