The size of Killarney is approximately 78.5 square kilometres. It has 2 parks covering nearly 0.1% of total area. The population of Killarney in 2016 was 954 people. By 2021 the population was 918 showing a population decline of 3.8% in the area during that time. The predominant age group in Killarney is 60-69 years. Households in Killarney are primarily childless couples and are likely to be repaying $1000 - $1399 per month on mortgage repayments. In general, people in Killarney work in a labourer occupation.In 2021, 70.30% of the homes in Killarney were owner-occupied compared with 68.90% in 2016..
Killarney has 613 properties. Over the last 5 years, Houses in Killarney have seen a 160.38% increase in median value, while Units have seen a 60.26% increase. As at 31 July 2025:
58 Spring Creek Rd, Killarney is in the school catchment zone for Killarney P-10 State School.
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Population 918
0-9
6%
10-19
9%
20-29
9%
30-39
6%
40-49
9%
50-59
14%
60-69
19%
70-79
16%
80-89
9%
90-99
2%