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Costello has 7 properties.
The size of Costello is approximately 39152.2 square kilometres. It has 2 parks. The population of Costello in 2016 was 12 people. By 2021 the population was 23 showing a population growth of 91.7% in the area during that time. The predominant age group in Costello is 10-19 years. Households in Costello are primarily single parents and are likely to be repaying $300 - $449 per month on mortgage repayments. In general, people in Costello work in a labourer occupation.In 2021, 0.00% of the homes in Costello were owner-occupied compared with 0.00% in 2016.
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Population 23
10-19
61%
30-39
13%
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Last Updated: 06/12/2025
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