Average Age
    Individual ages are available for people from 1850 on.  The average age in the Town of New Castle was about 25 for both males and females in both 1850 and 1870, with a median age of 21.  

The median age in 2000 in Zip code 19720 was considerably older than that in 1870 for New Castle: 34.6. The median was even higher (just above 40) in the Town of New Castle itself in 2000.  The nation-wide median age in 2000 was 35.

 Age distribution
In 1830 the number of individuals in a household in a given group were counted for each sex and race; no individual ages were reported

Slavery in 1830
    Number of persons living in slavery.
    Number of slaves in households with slaves.

Occupations in the Town of New Castle
    In 1870, there were 150 occupations listed for the 1915 individuals.  The most common is "At Home" which are all children with the exception of 8 people over 60 years old.  The next most common is "Keeping House", which includes both housewives and 16 housekeepers (for example, Sara Mason, who was keeping house for her husband, and Samuel Guthrie, the owner of 30 The Strand).  The real and personal values of the housekeepers and those "without occupation" is quite high, since it includes wealthy men and their widows, such as William Couper (owner of the Read House), and Mary Read.
    New Castle was now a mill-oriented community-- the third most common job outside of the home was in a cotton mill.  Presumably the workers (evenly divided between men and women) worked in the Triton Mills, finished just after the Civil War.  Some of the occupations in the full list appear unusual: gold beater
  

Occupations in New Castle Hundred
    The distribution of occupations was quite different outside of the town in the very much more rural Hundred: ten times as many people were farmers or worked on a farm, were without occupation, or lived at home as the next most common occupation: domestic worker.  

Wealth
    The wealthiest individuals in 1870 (in terms of real property) include Dr. Lesley, the owner of the just-built mansion (now the Deemer Mansion), Elihu Jefferson, owner since the 1820's of the largest house on the Strand and William Couper, owner of the Read House.
   The distribution is of course very uneven -- all the people in 57 of the 151 occupations listed zero real wealth.  This must be partially an artifact of data collection.  Assuming that personal wealth includes salary,  people in 90/151 occupations also list no personal wealth, even though their jobs -- watchman, factory worker, or school teacher must have been paid.  50 Wealthiest

Wealth --farm vs non-farm, Town vs Hundred  in 1870
    The majority of the wealth in 1870 (at least as reported to the enumerators) was reported for farmers in New Castle Hundred.  The total wealth in the Hundred was about 10 times that in the Town;