Tarneit (West) - Mount Cottrell · Statistical Area 2 (SA2)
How well-off the area is, how fast its population is growing, and the businesses and new homes here.
A population jump of 85.8% since 2021 makes Tarneit (West) - Mount Cottrell one of the fastest-growing areas in the region. This rapid expansion is matched by a strong economic footing, with residents generally having better access to money and skills than most people across Australia.
All statistical area 2 (sa2) areas, 2021. The marker is Tarneit (West) - Mount Cottrell — higher than 57% of areas.
| Tarneit (West) - Mount Cottrell | 6 |
|---|---|
| 3024, VIC | 6 |
SEIFA indexes ranking relative advantage and disadvantage.
The area is more advantaged than about 60% of all Australian regions. This is supported by strong scores for education and job skills, which are higher than about 70% of similar areas.
6
Higher than 57% 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.
6
Higher than 57% 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.
8
Higher than 71% 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.
7
Higher than 64% 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.
1,021
Higher than 60% 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.
Growth here is far above the Victorian average of 8.0%, with the population climbing by 85.8% since the last census. The total population now stands at 19,169.
19,169
Higher than 86% of statistical area 2 (sa2) areas.
Estimated resident population (ABS), 2025.
85.8%
Higher than 99% of statistical area 2 (sa2) areas.
Population growth since the 2021 Census, from ABS annual estimates.
Operating businesses and dwellings approved.
Business activity is very high for an area of this type, with 2,487 businesses operating in the region.
2,487
Higher than 86% of statistical area 2 (sa2) areas.
Operating businesses (ABS Counts of Australian Businesses), June 2025.
Australian Bureau of Statistics. (2021). Economy & Advantage in Tarneit (West) - Mount Cottrell [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa2/213051582/tarneit-mount-cottrell/topic/economy-advantage
