New Castle is located in Delaware. New Castle, Delaware 19720has a population of 5,482. New Castle 19720 is less family-centric than the surrounding county with 24.82% of the households containing married families with children. The county average for households married with children is 27.86%.
The median household income in New Castle, Delaware 19720 is $83,651. The median household income for the surrounding county is $78,428 compared to the national median of $69,021. The median age of people living in New Castle 19720 is 50.1 years.
The average high temperature in July is 86.9 degrees, with an average low temperature in January of 23.9 degrees. The average rainfall is approximately 44.9 inches per year, with 12.4 inches of snow per year.
