Sandwich Real EstateSandwich is located in Massachusetts. Sandwich, Massachusetts has a population of 20,416. Sandwich is more family-centric than the surrounding county with 28.04% of the households containing married families with children. The county average for households married with children is 21.28%. The median household income in Sandwich, Massachusetts is $88,870. The median household income for the surrounding county is $68,048 compared to the national median of $57,652. The median age of people living in Sandwich is 48.5 years. Sandwich WeatherThe average high temperature in July is 79.1 degrees, with an average low temperature in January of 21.1 degrees. The average rainfall is approximately 48.8 inches per year, with 25.9 inches of snow per year. Sandwich MapReal estate near SandwichNearby CitiesNearby Cities Homes for Sale |