Dennis CDP, Massachusetts Demographics & Population 2026

Population Overview

Dennis CDP is a small community located in Massachusetts. The total population is 1,903. It ranks as the 187th most populous out of 248 cities and towns in Massachusetts.

Age Demographics

The median age in Dennis CDP is 63.2 years. This is 58% higher than the state median of 40.0 years. Only 9.7% of residents are under 18, indicating fewer families with children. 19.1% 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 Dennis CDP is $127,292. This is 26% higher than the state median of $101,341. Compared to the national median of $78,538, household income here is 62% higher. The poverty rate stands at 3.3%. This is 67% 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 3.1%. This is 39% lower than the state rate of 5.1%. The median home value is $835,300. Housing costs are 59% higher than the state median of $525,800. The home-value-to-income ratio of 6.6x suggests that housing affordability is a significant concern for many residents. 87.2% of occupied housing units are owner-occupied. This homeownership rate is 39% higher than the state average of 62.6%.

Race & Ethnicity

Dennis CDP has a predominantly White (non-Hispanic) population, comprising 99.0% of all residents.

Education

50.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 8% 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 100.0%. Notably, 26.5% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Dennis 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.