New Seabury, Massachusetts Demographics & Population 2026

A note before these figures: with a population of 726, New Seabury's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

New Seabury is a small community located in Massachusetts, within Barnstable County. The total population is 726. It ranks as the 232nd most populous out of 248 Census-designated places in Massachusetts.

Age Demographics

The median age in New Seabury is 68.1 years. This is 70% higher than the state median of 40.0 years. Only 4.1% of residents are under 18, indicating fewer families with children. 28.5% 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 New Seabury is $212,750. This is 105% higher than the state median of $103,960. It is also 164% higher than the national median of $80,734. The ACS records no residents below the poverty line in New Seabury. In a community this small the estimate rests on very few survey responses, so it should be read as an absence of measurement rather than a measured absence of poverty. The unemployment rate is 3.2%. This is 37% lower than the state rate of 5.1%. The median home value is $954,700. Housing costs are 70% higher than the state median of $562,100. The home-value-to-income ratio is 4.5x. 87.9% of occupied housing units are owner-occupied. This homeownership rate is 41% higher than the state average of 62.5%.

Race & Ethnicity

New Seabury has a predominantly White (non-Hispanic) population, comprising 94.9% of all residents. Hispanic or Latino residents account for 5.1%. The Hispanic or Latino population (5.1%) is well below the state average of 13.3%.

Education

77.7% of residents aged 25 and older hold a bachelor's degree or higher. This places New Seabury in the top 10% of all cities in the state for educational attainment. This is 64% higher than the state rate of 47.3%. Nationally, 35.7% of adults hold at least a bachelor's degree. No surveyed resident aged 25 or older reported leaving school before earning a high school diploma, though a rate of exactly 100% reflects the limits of a small sample. Notably, 43.8% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for New Seabury, Massachusetts is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. 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. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.