Marlboro is home to the WRSY-FM, 101.5, radio station.
There were 330 households out of which 30.6% had children under the age of 18 living with them, 55.8% were married couples living together, 6.1% had a female householder with no husband present, and 34.8% were non-families. 25.5% of all households were made up of individuals and 10.0% had someone living alone who was 65 years of age or older. The average household size was 2.39 and the average family size was 2.90.
In the town the population was spread out with 19.0% under the age of 18, 23.3% from 18 to 24, 20.1% from 25 to 44, 27.5% from 45 to 64, and 10.0% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 96.0 males. For every 100 females age 18 and over, there were 90.4 males.
The median income for a household in the town was $41,429, and the median income for a family was $44,861. Males had a median income of $30,313 versus $25,673 for females. The per capita income for the town was $19,503. About 0.9% of families and 3.9% of the population were below the poverty line, including 1.9% of those under age 18 and 7.6% of those age 65 or over.
Younger students from kindergarten to eighth grade attend the local Marlboro School.
The town is also home to Southern Vermont Natural History Museum.