Holliston is located in Massachusetts. Holliston, Massachusetts has a population of 14,891. Holliston is more family-centric than the surrounding county with 38.06% of the households containing married families with children. The county average for households married with children is 35.9%.
The median household income in Holliston, Massachusetts is $142,348. The median household income for the surrounding county is $111,790 compared to the national median of $69,021. The median age of people living in Holliston is 44.2 years.
The average high temperature in July is 83 degrees, with an average low temperature in January of 16.2 degrees. The average rainfall is approximately 49.8 inches per year, with 43.6 inches of snow per year.