Southwick is located in Massachusetts. Southwick, Massachusetts has a population of 9,711. Southwick is more family-centric than the surrounding county with 26.57% of the households containing married families with children. The county average for households married with children is 24.34%.
The median household income in Southwick, Massachusetts is $76,737. The median household income for the surrounding county is $52,205 compared to the national median of $57,652. The median age of people living in Southwick is 46.6 years.
The average high temperature in July is 82.1 degrees, with an average low temperature in January of 15.2 degrees. The average rainfall is approximately 50.1 inches per year, with 40.5 inches of snow per year.