Poolesville 20837 Real EstatePoolesville is located in Maryland. Poolesville, Maryland 20837has a population of 5,666. Poolesville 20837 is more family-centric than the surrounding county with 41.44% of the households containing married families with children. The county average for households married with children is 37.16%. The median household income in Poolesville, Maryland 20837 is $201,607. The median household income for the surrounding county is $117,345 compared to the national median of $69,021. The median age of people living in Poolesville 20837 is 41.9 years. Poolesville WeatherThe average high temperature in July is 86.4 degrees, with an average low temperature in January of 24.6 degrees. The average rainfall is approximately 42 inches per year, with 20.2 inches of snow per year. Poolesville MapReal estate near PoolesvilleNearby CitiesNearby Cities Homes for Sale |