Curtis Island, QLD 4680
Gladstone - BiloelaAll suburbs in postcode 4680
Updated
Median house price
Verified median pending
We don't yet have a verified suburb-level median for this market. We're working on a data partner; in the meantime, treat the state-level figures as a guide only. How we source data.
Sales data as of May 2026
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What to know about Curtis Island
Curtis Island (4680) sits in the Gladstone - Biloela region of Queensland.
Curtis Island has roughly 36 residents, with a retiree-heavy demographic. Households are predominantly owner-occupied. Daily life is car-dependent: most residents drive to work, school and the shops.
What it’s like to live here
Curtis Island scores 0/100 on walkability, which makes it car-dependent with limited public transport. Plan for two cars in a typical household, especially if work isn't local.
Summer days here average around 31°C (warm), winter mornings around 14°C (mild). Annual rainfall lands at about 837 mm. Figures are our 1991 to 2020 averages of SILO data for this location (Queensland Government, built from Bureau of Meteorology observations).
Schooling within or near the suburb covers 5 government primary, 2 government secondary, 3 Catholic, 1 independent.
Schools in Curtis Island
Schools serving Curtis Island: government first, then Catholic and independent.
Government schools
© ACARA, licensed under CC BY 4.0.
Location
Walkability
- Walk
- 0/100
- Transit
- 0/100
- Bike
- 10/100
Very car dependent. Scores out of 100, calculated from OpenStreetMap data (ODbL).
Walkability data as of May 2026· OpenStreetMap
Demographics
The 2021 Census put Curtis Island's population at 36, with a median age of 62. That sits as a retiree-heavy demographic. Households are predominantly owner-occupied (107% own, 0% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (60% family households, 27% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
- Population
- 36
- Median age
- 62
- Family households
- 60%
- Lone person
- 27%
- Owner occupied
- 107%
Demographics data as of May 2026· ABS 2021 Census
Weather year-round
- Annual rainfall
- 837 mm
- Hottest month, avg max
- 30.5°C
- Coldest month, avg min
- 13.8°C
Rainfall by month
Our 1991 to 2020 averages of SILO data (Queensland Government, built from Bureau of Meteorology observations, CC BY 4.0) for this location.
Climate data as of October 2026· SILO (Queensland Government), from Bureau of Meteorology observations
Questions about Curtis Island
- What is the Curtis Island postcode?
- Curtis Island is in the 4680 postcode, in QLD, in the Gladstone - Biloela region.
- Where is Curtis Island?
- Curtis Island is a suburb in the Gladstone - Biloela area, QLD 4680.
- What schools are in Curtis Island?
- There are 12 schools serving Curtis Island on this page, including Gladstone Central State School, Star of the Sea Catholic Primary School, Gladstone State High School.
- How walkable is Curtis Island?
- Curtis Island has a Walk Score of 0 out of 100, highly car-dependent. transit score 0, bike score 10.
- What suburbs are near Curtis Island?
- Curtis Island is close to South End, Barney Point, Gladstone Central, Gladstone.
- What is the population of Curtis Island?
- The population of Curtis Island is approximately 36 (2021 Census). The median age is 62.
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Sources. House and unit medians from the NSW Valuer General, Land Victoria, the SA Government and the ABS; rents from the state rental bond authorities. Census from the ABS (2021), climate from the Bureau of Meteorology, hazard from Geoscience Australia, schools from ACARA and crime from state police open data. Each figure carries its source and date. How we source data
How we’re paid. The guides and this page are free. When a seller asks, we introduce one local agent, and the agent pays us a flat fee for the introduction, never a share of their commission; it costs the seller nothing. If a figure looks wrong, tell us and we’ll fix it.