The size of Koondoola is approximately 3.5 square kilometres. It has 9 parks covering nearly 43.1% of total area. The population of Koondoola in 2011 was 3,897 people. By 2016 the population was 4,060 showing a population growth of 4.2% in the area during that time. The predominant age group in Koondoola is 0-9 years. Households in Koondoola are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Koondoola work in a labourer occupation. In 2011, 65.1% of the homes in Koondoola were owner-occupied compared with 62.6% in 2016. Currently the median sales price of houses in the area is $350,000.