Great Mills is located in Maryland. Great Mills, Maryland 20634 has a population of 6,258. Great Mills 20634 is more family-centric than the surrounding county with 35% households with children. The county percentage for households with children is 33%.
The median household income in Great Mills, Maryland 20634 is $83,618. The median household income for the surrounding county is $91,265 compared to the national median of $61,963. The median age of people living in Great Mills 20634 is 36.5 years.
The average high temperature in July is 86.1 degrees, with an average low temperature in January of 28.3 degrees. The annual precipitation is 43.69.