New Marlboro is located in Massachusetts. New Marlboro, Massachusetts has a population of 3,457.
The median household income in New Marlboro, Massachusetts is $56,124. The median household income for the surrounding county is $55,190 compared to the national median of $57,652. The median age of people living in New Marlboro is 44.9 years.
The average high temperature in July is 82.3 degrees, with an average low temperature in January of 13.8 degrees. The average rainfall is approximately 46.9 inches per year, with 61 inches of snow per year.