Marshallton Real EstateMarshallton real estate listings include condos, townhomes, and single family homes for sale. Commercial properties are also available. If you see a property you’re interested in, contact a Marshallton real estate agent to arrange a tour today! Marshallton, Delaware has a population of 35,638. The median household income in Marshallton, Delaware is $40,221. The median household income for the surrounding county is $68,336 compared to the national median of $57,652. The median age of people living in Marshallton is 35.7 years. Marshallton WeatherThe average high temperature in July is 84.6 degrees, with an average low temperature in January of 25 degrees. The average rainfall is approximately 45.7 inches per year, with 10.8 inches of snow per year. Nearby Homes for Sale |