Saint Charles is located in Maryland. Saint Charles, Maryland has a population of41,286.
The median household income in Saint Charles, Maryland is $95,697. The median household income for the surrounding county is $100,626 compared to the national median of $66,222. The median age of people living in Saint Charles is 36.9 years.
The average high temperature in July is 84.8 degrees, with an average low temperature in January of 26 degrees. The annual precipitation is 44.04.