Mortdale - Oatley · Statistical Area 2 (SA2)
How well-off the area is, how fast its population is growing, and the businesses and new homes here.
A high overall advantage score of 9 puts Mortdale - Oatley in a stronger position than about 90% of similar areas. This region is marked by significant wealth and professional success, with an overall advantage score of 1,084 that is larger than about 83% of other areas at this level.
All statistical area 2 (sa2) areas, 2021. The marker is Mortdale - Oatley — higher than 86% of areas.
| Mortdale - Oatley | 9 |
|---|---|
| 2223, NSW | 10 |
SEIFA indexes ranking relative advantage and disadvantage.
Residents generally have high levels of education and job skills, scoring 8 out of 10. This helps explain why the area's overall advantage is so high compared to most of the country.
9
Higher than 86% of statistical area 2 (sa2) areas.
ABS Index of Relative Socio-economic Advantage and Disadvantage, 2021, as a national decile: 1 = among the 10% most disadvantaged areas in Australia, 10 = among the 10% most advantaged. IRSAD summarises both advantage and disadvantage, so a high score reflects relatively many high-income, well-educated households and few low-income, low-skill ones.
8
Higher than 71% of statistical area 2 (sa2) areas.
ABS Index of Relative Socio-economic Disadvantage, 2021, as a national decile: 1 = among the 10% most disadvantaged areas in Australia, 10 = among the least disadvantaged. IRSD focuses on disadvantage alone (low income, low education, unemployment, unskilled occupations), so a higher decile means relatively less disadvantage.
7
Higher than 64% of statistical area 2 (sa2) areas.
ABS Index of Economic Resources, 2021, as a national decile: 1 = among the 10% lowest areas for economic resources in Australia, 10 = among the highest. IER reflects the income, housing costs, dwelling size and assets of households, so a higher decile means relatively greater economic resources.
8
Higher than 71% of statistical area 2 (sa2) areas.
ABS Index of Education and Occupation, 2021, as a national decile: 1 = among the 10% lowest areas for education and occupation in Australia, 10 = among the highest. IEO reflects residents' qualifications and the skill level of their jobs, so a higher decile means a more highly educated and skilled workforce.
1,084
Higher than 82% of statistical area 2 (sa2) areas.
ABS Index of Relative Socio-economic Advantage and Disadvantage, 2021, as a raw index score (standardised so the Australian average is about 1000). Higher scores indicate relatively greater advantage; lower scores greater disadvantage.
Annual population estimates and change since the census.
The population has grown by 3.9% since 2021, which is around the middle for its level. This growth is a little below the New South Wales figure of 6.1%.
15,297
Higher than 72% of statistical area 2 (sa2) areas.
Estimated resident population (ABS), 2025.
3.9%
Lower than 56% of statistical area 2 (sa2) areas.
Population growth since the 2021 Census, from ABS annual estimates.
Operating businesses and dwellings approved.
There are 1,103 businesses operating in the area, which is more than about 61% of similar areas.
1,103
Higher than 61% of statistical area 2 (sa2) areas.
Operating businesses (ABS Counts of Australian Businesses), June 2025.
Australian Bureau of Statistics. (2021). Economy & Advantage in Mortdale - Oatley [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa2/119031666/mortdale-oatley/topic/economy-advantage
