Lot 21/26 Quoin Island, Gladstone Harbour is a bedroom, bathroom Unit. The property has a land size of 1500m2 and floor size of 101m2. While the property is not currently for sale or for rent, it was last transferred in September 2000.
The size of Gladstone Harbour is approximately 37.3 square kilometres. It has 1 park covering nearly 0.2% of total area. The population of Gladstone Harbour in 2016 was 29 people. By 2021 the population was 24 showing a population decline of 17.2% in the area during that time. The predominant age group in Gladstone Harbour is 60-69 years. Households in Gladstone Harbour are primarily childless couples and are likely to be repaying $800 - $999 per month on mortgage repayments. In general, people in Gladstone Harbour work in a sales workers occupation.In 2021, 100.00% of the homes in Gladstone Harbour were owner-occupied compared with 100.00% in 2016.
Gladstone Harbour has 170 properties. Over the last 5 years, Houses in Gladstone Harbour have seen a 126.03% increase in median value, while Units have seen a -38.78% decrease. As at 30 November 2025:
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