Historical:
1851 is the first year that Sydney's suburbs are listed separately when counting population, etc. Prior to that it was just 'Sydney'. In that year the population of Newtown was 925, and Camperdown was 503. By 1912 the population of Newtown had risen to 27,790

Contemporary (1991):
The area is made up mostly of people of Anglo-saxon descent. Chinese and Greek people make up a small percentage of the remainder.

About half the residents are Christian with 30% describing themselves as having no religion. This compares to the national average of 74% being Christian and 12.9% having no religion.

Only 31-38% of dwellings house families, which is unusually low. Couples without children are the largest group (32-46%). Two parent families make up 33-44% of the families, and sole parent families 7-11%.

Housing:
Most homes are semi-detached terraces or townhouses (51-66%), with some flats/apartments (15-30%) and a smaller number of separate houses (12-13.5%).

This is a high rental area at 38-47% of dwellings; 25% owned private dwellings and 20-23% mortgages. Over half the dwellings have one or two bedrooms, making them smaller than most other dwellings surveyed.

The block size of land varies greatly due to large public buildings, some commercial buildings and the many terraces, eg: numbers 1 to 11 are the one block, as are 16-26.

The average size of terrace blocks is
4.93m (front) / 4.98 (back) x 25.45m = 126.7 sqm

"..two very common terrace house widths are 6.7 metres, one-third of a chain, and 5 metres, one-quarter of a chain. The latter is about minimum for a readily marketable house, for after passage and wall thicknesses are accounted for, its main front room is about 3.35 metres." (a chain being a measure of 20 metres)
From Robert Irving, The History and Design of the Australian House.

Sources:
Figures calculated from Australian Bureau of Statistics' CDATA 91

Dr Lang's History of New South Wales, quoted in The Expansion of Sydney: A Pictorial Contrast From 1840 to 1914, Feldheim, 1914, p5

Robert Irving, The History and Design of the Australian House, Oxford University Press, 1985, p268.