The size of Lalor is approximately 9.3 square kilometres. It has 16 parks covering nearly 4.7% of total area. The population of Lalor in 2011 was 19,873 people. By 2016 the population was 22,612 showing a population growth of 13.8% in the area during that time. The predominant age group in Lalor is 30-39 years. Households in Lalor are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Lalor work in a trades occupation. In 2011, 73.6% of the homes in Lalor were owner-occupied compared with 70.6% in 2016. Currently the median sales price of houses in the area is $710,000.