Mount Martha · Statistical Area 2 (SA2)
How well-off the area is, how fast its population is growing, and the businesses and new homes here.
A steady population growth of 0.7% since 2021 shows Mount Martha has become more stable compared to the faster pace seen across Victoria. It is a highly affluent area where residents enjoy some of the highest levels of financial and educational advantage in the country.
All statistical area 2 (sa2) areas, 2021. The marker is Mount Martha — higher than 71% of areas.
| Mount Martha | 8 |
|---|---|
| 3934, VIC | 9 |
SEIFA indexes ranking relative advantage and disadvantage.
Residents here have an advantage score of 1,068, which is larger than about 78% of similar areas. This wealth is backed by top-tier access to money and resources, as well as job skills that are higher than about 80% of other areas.
8
Higher than 71% 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.
9
Higher than 86% 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.
10
Higher than 99% 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.
1,068
Higher than 77% 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 reached 20,161 people, making it larger than about 88% of similar areas. However, recent growth of 0.7% is much lower than most areas and well below the Victorian figure of 8.0%.
20,161
Higher than 86% of statistical area 2 (sa2) areas.
Estimated resident population (ABS), 2025.
0.7%
Lower than 84% of statistical area 2 (sa2) areas.
Population growth since the 2021 Census, from ABS annual estimates.
Operating businesses and dwellings approved.
There are 1,796 businesses operating in the area, a count that is larger than about 84% of similar areas.
1,796
Higher than 84% of statistical area 2 (sa2) areas.
Operating businesses (ABS Counts of Australian Businesses), June 2025.
Australian Bureau of Statistics. (2021). Economy & Advantage in Mount Martha [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa2/214021382/mount-martha/topic/economy-advantage
