The size of Newcomb is approximately 3.6 square kilometres. It has 5 parks covering nearly 2% of total area. The population of Newcomb in 2011 was 4,519 people. By 2016 the population was 4,490 showing a population decline of 0.6% in the area during that time. The predominant age group in Newcomb is 20-29 years. Households in Newcomb are primarily childless couples and are likely to be repaying $1000 - $1399 per month on mortgage repayments. In general, people in Newcomb work in a trades occupation. In 2011, 65.2% of the homes in Newcomb were owner-occupied compared with 59% in 2016. Currently the median sales price of houses in the area is $455,000.