South Duxbury CDP, Massachusetts Demographics & Population 2026

Population Overview

South Duxbury CDP is a small community located in Massachusetts. The total population is 3,272. It ranks as the 148th most populous out of 248 cities and towns in Massachusetts.

Age Demographics

The median age in South Duxbury CDP is 49.5 years. This is 24% higher than the state median of 40.0 years.

Economy, Income & Housing

The median household income in South Duxbury CDP is $206,111. This is 103% higher than the state median of $101,341. Compared to the national median of $78,538, household income here is 162% higher. The poverty rate stands at 4.8%. This is 52% 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 4.6%. This is 10% lower than the state rate of 5.1%. The median home value is $987,500. Housing costs are 88% higher than the state median of $525,800. The home-value-to-income ratio is 4.8x. 95.2% of occupied housing units are owner-occupied. This homeownership rate is 52% higher than the state average of 62.6%.

Race & Ethnicity

South Duxbury CDP has a predominantly White (non-Hispanic) population, comprising 91.2% of all residents. Hispanic or Latino residents account for 2.8%. The Black or African American population (0.1%) is well below the state average of 6.5%. The Hispanic or Latino population (2.8%) is well below the state average of 12.9%. The Asian population (2.4%) is well below the state average of 7.0%.

Education

80.6% of residents aged 25 and older hold a bachelor's degree or higher. This places South Duxbury CDP in the top 10% of all cities in the state for educational attainment. This is 73% 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 98.4%. Notably, 38.4% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for South Duxbury 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.