Seabrook Beach CDP, New Hampshire Demographics & Population 2026

Population Overview

Seabrook Beach CDP is a small community located in New Hampshire. The total population is 909. It ranks as the 68th most populous out of 100 cities and towns in New Hampshire.

Age Demographics

The median age in Seabrook Beach CDP is 61.9 years. This is 43% higher than the state median of 43.2 years. Only 7.1% of residents are under 18, indicating fewer families with children. 19.0% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Seabrook Beach CDP is $114,167. This is 19% higher than the state median of $95,628. Compared to the national median of $78,538, household income here is 45% higher. The poverty rate stands at 8.5%. This is 18% higher than the state poverty rate of 7.2%. The unemployment rate is 7.8%. This is 132% higher than the state rate of 3.4%. The median home value is $903,300. Housing costs are 146% higher than the state median of $367,200. The home-value-to-income ratio of 7.9x suggests that housing affordability is a significant concern for many residents. 80.9% of occupied housing units are owner-occupied. This homeownership rate is 12% higher than the state average of 72.5%.

Race & Ethnicity

Seabrook Beach CDP has a predominantly White (non-Hispanic) population, comprising 96.2% of all residents. Hispanic or Latino residents account for 2.2%. The Hispanic or Latino population (2.2%) is well below the state average of 4.5%.

Education

45.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 14% higher than the state rate of 39.8%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 98.8%. Notably, 25.3% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Seabrook Beach CDP, New Hampshire 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 Hampshire state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 100 Census-designated places in New Hampshire. For official data, visit data.census.gov.