Johnston has 1,009 properties. Over the last 5 years, Houses in Johnston have seen a 31.99% increase in median value, while Units have seen a 2.47% increase. As at 31 December 2024:

• The median value for Houses in Johnston is $637,094 while the median value for Units is $337,543.
• Houses have a median rent of $680 while Units have a median rent of $520.

The size of Johnston is approximately 2.6 square kilometres. It has 5 parks covering nearly 2% of total area. The population of Johnston in 2011 was 4 people. By 2016 the population was 2,047 showing a population growth of 51075.0% in the area during that time. The predominant age group in Johnston is 20-29 years. Households in Johnston are primarily couples with children and are likely to be repaying $3000 - $3999 per month on mortgage repayments. In general, people in Johnston work in a trades occupation. In 2011, 50% of the homes in Johnston were owner-occupied compared with 38.1% in 2016.