The size of Noarlunga Downs is approximately 4.3 square kilometres. It has 15 parks covering nearly 31.2% of total area. The population of Noarlunga Downs in 2011 was 3,383 people. By 2016 the population was 3,843 showing a population growth of 13.6% in the area during that time. The predominant age group in Noarlunga Downs is 20-29 years. Households in Noarlunga Downs are primarily couples with children and are likely to be repaying $1000 - $1399 per month on mortgage repayments. In general, people in Noarlunga Downs work in a trades occupation. In 2011, 57.9% of the homes in Noarlunga Downs were owner-occupied compared with 58.1% in 2016. Currently the median sales price of houses in the area is $417,500.