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Mornington
Queensland · Queensland - Outback · 1,022 people · 3 suburbs · 2 postcodes
Mornington at a glance
Map shows the Mornington LGA boundary in blue with a marker per suburb. Hover for suburb name, click for details.
Marker colour reflects SEIFA IRSAD decile: ● 1-2 (most disadvantaged), ● 3-4, ● 5-6, ● 7-8, ● 9-10 (most advantaged).
Boundary source: ABS ASGS 2021. Map tiles: OpenStreetMap contributors.
Federal electorate boundaries can be toggled on the map. Boundary source: ABS ASGS 2021 CED boundaries.
Mornington is a Local Government Area in Queensland, in the Brisbane region. It covers 3 suburbs across 2 postcodes and an area of 1,231 km². Mornington has a population of 1,022 , ranking #61 most populous in QLD. The most populous suburb is Wellesley Islands (1,022 residents).About 2.7% of residents were born overseas and 34.7% speak a language other than English at home.
Who lives here
Age structure
Show counts
| 0–14 years | 245 (24.2%) |
| 15–24 years | 192 (18.9%) |
| 25–44 years | 300 (29.6%) |
| 45–64 years | 217 (21.4%) |
| 65+ years | 60 (5.9%) |
How they live
Housing tenure
Dwelling type mix
Work and learning
Schools in Mornington
1 schools across Mornington: 100.0% Government, 0% Catholic, 0% Independent. The QLD average is 69.8% / 17.1% / 13.1%. Schools here have a median ICSEA of 660 (range 660 to 660). QLD median is 985; national mean is 1000.
Sector mix
Type breakdown
ICSEA range
ICSEA (Index of Community Socio-Educational Advantage) summarises the socio-economic background of each school's families. Higher values indicate more advantage. Source: ACARA 2025.
All 1 schools in Mornington, sorted by enrolment:
| School | Sector | Type | Suburb | Students | ICSEA |
|---|---|---|---|---|---|
| Mornington Island State School | Government | Combined | Wellesley Islands | 181 | 660 |
Source: ACARA School Profiles 2025. ICSEA shown where reported; some schools (notably small primaries) do not publish ICSEA.
SEIFA socio-economic indexes
SEIFA 2021 ranks Australian areas across four dimensions. Scores are population-weighted averages of suburb-level SEIFA scores within Mornington. Higher scores indicate more advantage; the national mean is 1000.
IRSAD
Relative socio-economic advantage and disadvantage
IRSD
Relative disadvantage only (lower = more disadvantaged)
IER
Economic resources: income, wealth, housing
IEO
Education and occupation: qualifications, skill levels
Suburbs in Mornington
Mornington contains 3 suburbs and 2 postcodes. Sorted by population.
| Suburb | Postcode | Population | Median income | Median age |
|---|---|---|---|---|
| Wellesley Islands | 4871 | 1,022 | $855/wk | 29 |
| South Wellesley Islands | 4871 | |||
| West Wellesley Islands | 4871 |
Postcodes covered
Compare Mornington with neighbouring LGAs
Side-by-side demographic and socio-economic snapshot of Mornington and its closest neighbouring LGAs.
| LGA | Population | Median age | SEIFA IRSAD | % renting | % overseas-born |
|---|---|---|---|---|---|
| Mornington (QLD) | 1,022 | 29.0 | 747 | 100.0% | 2.7% |
| Carpentaria | 2,087 | 36.1 | 863 | 58.2% | 6.5% |
| Doomadgee | 1,387 | 25.0 | 696 | 100.0% | 2.7% |
Services and amenities
Frequently asked questions about Mornington
What is the population of Mornington?
The 2021 Census recorded 1,022 people living in Mornington, across 3 suburbs.
What suburbs are in Mornington?
Mornington contains 3 suburbs. The most populous are Wellesley Islands, South Wellesley Islands, West Wellesley Islands.See the full list in the Suburbs section above.
What postcodes are in Mornington?
Mornington covers 2 postcodes: 4871, 4892.
How many schools are in Mornington?
Mornington has 1 schools, including 1 government, 0 Catholic, and 0 independent schools (ACARA 2025).
What is the SEIFA score for Mornington?
Mornington has a population-weighted SEIFA IRSAD score of 747, where the national average is 1000. Higher scores indicate more relative advantage.
Page last reviewed . Data sources: Australian Bureau of Statistics 2021 Census (CC BY 4.0), SEIFA 2021 (IRSD, IRSAD, IER, IEO), ACARA School Profiles 2025, ABS ASGS 2021 LGA boundaries. How this data is sourced.