The size of Warner is approximately 10.6 square kilometres. It has 49 parks covering nearly 10.5% of total area. The population of Warner in 2011 was 8,380 people. By 2016 the population was 11,406 showing a population growth of 36.1% in the area during that time. The predominant age group in Warner is 0-9 years. Households in Warner are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Warner work in a professional occupation. In 2011, 69.2% of the homes in Warner were owner-occupied compared with 66.7% in 2016. Currently the median sales price of houses in the area is $690,000.