20 Keswick Avenue

Castle Hill NSW 2154

The size of Castle Hill is approximately 18.9 square kilometres. It has 68 parks covering nearly 12.1% of total area. The population of Castle Hill in 2016 was 39594 people. By 2021 the population was 40874 showing a population growth of 3.2% in the area during that time. The predominant age group in Castle Hill is 40-49 years. Households in Castle Hill are primarily couples with children and are likely to be repaying over $4000 per month on mortgage repayments. In general, people in Castle Hill work in a professional occupation.In 2021, 72.40% of the homes in Castle Hill were owner-occupied compared with 74.50% in 2016.

Castle Hill has 19,914 properties. Over the last 5 years, Houses in Castle Hill have seen a 33.51% increase in median value, while Units have seen a 11.28% increase. As at 30 April 2026:

• The median value for Houses in Castle Hill is $2,443,954 while the median value for Units is $1,012,252.
• Houses have a median rent of $968 while Units have a median rent of $788.