Seabrook CDP, Massachusetts Demographics & Population 2026

Population Overview

Seabrook CDP is a small community located in Massachusetts. The total population is 545. It ranks as the 238th most populous out of 248 cities and towns in Massachusetts.

Age Demographics

The median age in Seabrook CDP is 59.0 years. This is 48% higher than the state median of 40.0 years. Only 7.0% of residents are under 18, indicating fewer families with children.

Economy, Income & Housing

The poverty rate stands at 0.9%. This is 91% lower than the state poverty rate of 10.0%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 0.0%. This is 100% lower than the state rate of 5.1%. The median home value is $691,900. Housing costs are 32% higher than the state median of $525,800. 95.5% of occupied housing units are owner-occupied. This homeownership rate is 53% higher than the state average of 62.6%.

Race & Ethnicity

Seabrook CDP has a predominantly White (non-Hispanic) population, comprising 96.7% of all residents.

Education

51.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 10% higher than the state rate of 46.6%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 95.5%. Notably, 24.9% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Seabrook CDP, Massachusetts 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 Massachusetts state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 248 Census-designated places in Massachusetts. For official data, visit data.census.gov.