The size of Northbridge is approximately 0.4 square kilometres. It has 1 park covering nearly 4.8% of total area. The population of Northbridge in 2011 was 1,007 people. By 2016 the population was 1,290 showing a population growth of 28.1% in the area during that time. The predominant age group in Northbridge is 20-29 years. Households in Northbridge are primarily childless couples and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Northbridge work in a professional occupation. In 2011, 28.8% of the homes in Northbridge were owner-occupied compared with 34% in 2016. Currently the median sales price of houses in the area is $787,500.