Seaford CDP, New York Demographics & Population 2026

Population Overview

Seaford CDP is a small city located in New York. The total population is 15,884. It ranks as the 122nd most populous out of 1,287 cities and towns in New York.

Age Demographics

The median age in Seaford CDP is 40.4 years. This is 2% higher than the state median of 39.6 years.

Economy, Income & Housing

The median household income in Seaford CDP is $156,488. This is 85% higher than the state median of $84,578. Compared to the national median of $78,538, household income here is 99% higher. The poverty rate stands at 3.1%. This is 78% lower than the state poverty rate of 13.7%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 5.9%. This is 5% lower than the state rate of 6.2%. The median home value is $631,000. Housing costs are 57% higher than the state median of $403,000. The home-value-to-income ratio is 4.0x. 93.4% of occupied housing units are owner-occupied. This homeownership rate is 72% higher than the state average of 54.3%.

Race & Ethnicity

The largest racial or ethnic group in Seaford CDP is White (non-Hispanic), making up 83.3% of the population. Hispanic or Latino residents account for 8.0%. The White (non-Hispanic) population is significantly higher than the state average (83.3% vs 53.4%). The Black or African American population (2.3%) is well below the state average of 13.6%. The Hispanic or Latino population (8.0%) is well below the state average of 19.6%. The Asian population (3.8%) is well below the state average of 8.8%.

Education

43.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 10% higher than the state rate of 39.6%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 96.5%. Notably, 19.5% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Seaford CDP, New York is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against New York state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,287 Census-designated places in New York. For official data, visit data.census.gov.