Arnold Real EstateArnold is located in Maryland. Arnold, Maryland has a population of 25,056. Arnold is more family-centric than the surrounding county with 42.09% of the households containing married families with children. The county average for households married with children is 33.77%. The median household income in Arnold, Maryland is $133,343. The median household income for the surrounding county is $108,048 compared to the national median of $69,021. The median age of people living in Arnold is 38.2 years. Arnold WeatherThe average high temperature in July is 87.2 degrees, with an average low temperature in January of 28.4 degrees. The average rainfall is approximately 43.7 inches per year, with 13.5 inches of snow per year. Arnold MapReal estate near ArnoldNearby CitiesNearby Cities Homes for Sale |