Dennis is located in Massachusetts. Dennis, Massachusetts has a population of 14,664. Dennis is less family-centric than the surrounding county with 12.43% of the households containing married families with children. The county average for households married with children is 19.97%.
The median household income in Dennis, Massachusetts is $70,864. The median household income for the surrounding county is $82,619 compared to the national median of $69,021. The median age of people living in Dennis is 57.5 years.
The average high temperature in July is 78.7 degrees, with an average low temperature in January of 22.7 degrees. The average rainfall is approximately 46.6 inches per year, with 24.8 inches of snow per year.
