Monument Beach Real EstateMonument Beach is located in Massachusetts. Monument Beach, Massachusetts has a population of 3,097. Monument Beach is more family-centric than the surrounding county with 25.58% of the households containing married families with children. The county average for households married with children is 21.28%. The median household income in Monument Beach, Massachusetts is $71,645. 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 Monument Beach is 50.8 years. Monument Beach WeatherThe average high temperature in July is 80 degrees, with an average low temperature in January of 20.3 degrees. The average rainfall is approximately 49.2 inches per year, with 36.1 inches of snow per year. Monument Beach MapReal estate near Monument BeachNearby CitiesNearby Cities Homes for Sale |