The size of Holt is approximately 3.3 square kilometres. It has 18 parks covering nearly 9.2% of total area. The population of Holt in 2011 was 4,814 people. By 2016 the population was 4,609 showing a population decline of 4.3% in the area during that time. The predominant age group in Holt is 30-39 years. Households in Holt are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Holt work in a professional occupation. In 2011, 69.4% of the homes in Holt were owner-occupied compared with 67% in 2016. Currently the median sales price of houses in the area is $730,000.