Upper Marlboro is located in Maryland. Upper Marlboro, Maryland has a population of 621. Upper Marlboro is less family-centric than the surrounding county with 8.89% of the households containing married families with children. The county average for households married with children is 26.76%.
The median household income in Upper Marlboro, Maryland is $99,667. The median household income for the surrounding county is $91,124 compared to the national median of $69,021. The median age of people living in Upper Marlboro is 38.5 years.
The average high temperature in July is 87.4 degrees, with an average low temperature in January of 24 degrees. The average rainfall is approximately 43.8 inches per year, with 14.7 inches of snow per year.