From a total population of 4,538, New Castle has a median age of 32.3. The average age of males, in New Castle, is 33.9 while the average age of females is 30.5. When you compare this to median age of Colorado, New Castle is 3.9 years younger.
The median income of individuals, in New Castle, is $30,848 while the average household income is $71,676. When comparing the median income of people living in New Castle to the rest of Colorado, the average income in New Castle is $826 less.