About New Castle, DE
New Castle is located in Delaware. New Castle, Delaware has a population of 4,829. New Castle is less family-centric than the surrounding county with 16% households with children. The county percentage for households with children is 27%.
The median household income in New Castle, Delaware is $62,919. The median household income for the surrounding county is $70,957 compared to the national median of $61,963. The median age of people living in New Castle is 45.1 years.
New Castle Weather
The average high temperature in July is 86 degrees, with an average low temperature in January of 23.7 degrees. The annual precipitation is 42.81.
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