New Castle is located in Colorado. New Castle, Colorado has a population of 4,755. New Castle is more family-centric than the surrounding county with 37% households with children. The county percentage for households with children is 31%.
The median household income in New Castle, Colorado is $94,816. The median household income for the surrounding county is $77,587 compared to the national median of $66,222. The median age of people living in New Castle is 37.4 years.
The average high temperature in July is 89.1 degrees, with an average low temperature in January of 13.2 degrees. The annual precipitation is 17.93.