Tarneit (West) - Mount Cottrell

Tarneit (West) - Mount Cottrell lies within the top 10% of areas nationally in terms of population growth performance according to AreaSearch analysis of short and medium-term trends

Tarneit West-Mount Cottrell's population was approximately 19,889 as of May 2026. This figure shows a significant increase from the 2021 Census, which reported a population of around 10,132. The growth is inferred from ABS data showing an estimated resident population of 19,169 in June 2025 and an additional 2,665 validated new addresses since the Census date. This results in a density ratio of about 541 persons per square kilometer. The area's population grew by 96.3% between the 2021 Census and May 2026, which is notably higher than the state average of 9.3%. Interstate migration contributed approximately 71.7% to this growth.

AreaSearch uses ABS/Geoscience Australia projections for each SA2 area, released in 2024 with a base year of 2022. For areas not covered by this data, they use the VIC State Government's Regional/LGA projections from 2023, adjusted using a method of weighted aggregation of population growth from LGA to SA2 levels. Growth rates by age group are applied across all areas for years 2032 to 2041. Based on these projections, Tarneit West-Mount Cottrell is expected to grow exceptionally over the period, reaching approximately 24,719 persons by 2041, reflecting a total increase of around 120.7%.

The level of residential development activity in Tarneit (West) - Mount Cottrell was found to be higher than 90% of real estate markets across the country

Tarneit West - Mount Cottrell has averaged approximately 838 new dwelling approvals annually over the past five financial years, totalling 4,190 homes. As of FY26649 approvals have been recorded. On average, around 2.8 people move to the area each year per new home constructed between FY21 and FY25, indicating strong demand that supports property values. The average construction cost of new homes is $266,000, which is below regional levels, suggesting more affordable housing options for buyers.

In this financial year, $5.2 million in commercial development approvals have been recorded, reflecting the area's predominantly residential character. Compared to Greater Melbourne, Tarneit West - Mount Cottrell has seen a 385.0% higher building activity per person, offering buyers greater choice, although recent periods have shown some moderation in development activity. This level is significantly above the national average, indicating robust developer interest in the area. Recent construction comprises 95.0% detached houses and 5.0% townhouses or apartments, maintaining the area's traditional low-density character with a focus on family homes. The location has approximately 22 people per dwelling approval, suggesting an expanding market.

According to AreaSearch's latest quarterly estimate, Tarneit West - Mount Cottrell is forecasted to gain 23,999 residents by 2041. With current construction levels, housing supply should meet demand adequately, creating favourable conditions for buyers while potentially enabling growth that exceeds current forecasts.

Tarneit (West) - Mount Cottrell has moderate levels of nearby infrastructure activity, ranking in the top 50% nationally

Changes to local infrastructure significantly influence an area's performance. AreaSearch has identified 24 projects that could impact this region. Notable projects include Tarneit North Community Precinct, Werribee Junction & Mambourin East Precinct Structure Plans, The Grove Tarneit, and Tarneit Plains Primary School. Below is a list of those most relevant.

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Employment performance in Tarneit (West) - Mount Cottrell exceeds national averages across key labour market indicators

Tarneit West Mount Cottrell has a highly educated workforce with strong professional services representation. Its unemployment rate is 3.9%, lower than the Greater Melbourne average of 4.8%. In December 2025, there were 9,344 residents employed with an unemployment rate of 0.8% below Greater Melbourne's rate.

Workforce participation in Tarneit West Mount Cottrell was 75.1%, compared to Greater Melbourne's 69.9%. About 25.0% of residents work from home, considering Covid-19 lockdown impacts. Leading employment industries are transport, postal & warehousing, health care & social assistance, and retail trade. The area has a notable concentration in transport, postal & warehousing with employment levels at 2.9 times the regional average.

However, education & training is under-represented, with only 5.4% of Tarneit West Mount Cottrell's workforce compared to Greater Melbourne's 9.2%. The area appears to offer limited local employment opportunities based on Census data. Over December 2024 to December 2025, employment increased by 3.4%, labour force by 4.8%, and unemployment rose by 1.3 percentage points. In Greater Melbourne, employment grew by 2.4%, labour force expanded by 2.8%, and unemployment rose by 0.3 percentage points. Jobs and Skills Australia's national employment forecasts from May-25 project a 6.6% increase over five years and 13.7% over ten years. Applying these projections to Tarneit West Mount Cottrell's employment mix suggests local employment should increase by 6.6% over five years and 13.5% over ten years, based on simple weighting extrapolation for illustrative purposes.

Income levels align closely with national averages, indicating typical economic conditions for Australian communities according to AreaSearch analysis

The median taxpayer income in Tarneit (West) - Mount Cottrell SA2 is $51,676 and the average is $59,669 according to postcode level ATO data aggregated by AreaSearch for financial year 2023. This is lower than the national averages of $57,688 median income and $75,164 average income in Greater Melbourne. Based on Wage Price Index growth since financial year 2023, estimated incomes as of March 2026 would be approximately $56,647 median and $65,409 average. Census data shows that Tarneit (West) - Mount Cottrell's household, family, and personal incomes are at the 69th percentile nationally. The earnings profile indicates that 49.9% of residents earn between $1,500 and $2,999 per week (9,924 people), similar to regional levels where 32.8% fall within this bracket. High housing costs consume 19.9% of income in the area, but strong earnings place disposable income at the 65th percentile nationally. The area's SEIFA income ranking places it in the 7th decile.

Tarneit (West) - Mount Cottrell is characterized by a predominantly suburban housing profile, with ownership patterns similar to the broader region

The dwelling structure in Tarneit (West) - Mount Cottrell, as per the latest Census, was 99.3% houses and 0.7% other dwellings. In comparison, Melbourne metro had 67.9% houses and 32.1% other dwellings. The home ownership level in Tarneit (West) - Mount Cottrell was 5.1%, with the rest being mortgaged (65.2%) or rented (29.7%). The median monthly mortgage repayment was $2,000, aligning with Melbourne metro's average, while the median weekly rent was $385, compared to Melbourne metro's $2,000 and $390 respectively. Nationally, Tarneit (West) - Mount Cottrell's mortgage repayments were higher at $1,863, and rents exceeded the national figure of $375.

Tarneit (West) - Mount Cottrell features high concentrations of family households and group households, with a higher-than-average median household size

Family households comprise 86.9% of all households, including 59.4% couples with children, 17.7% couples without children, and 7.7% single parent families. Non-family households account for the remaining 13.1%, with lone person households at 9.2% and group households making up 4.1%. The median household size is 3.4 people, which is larger than the Greater Melbourne average of 2.6.

Tarneit (West) - Mount Cottrell shows strong educational performance, ranking in the upper quartile nationally when assessed across multiple qualification and achievement indicators

Tarneit (West) - Mount Cottrell has an educational attainment rate that exceeds national and regional averages. Specifically, 49.0% of residents aged 15 and above have university qualifications, compared to the Australian average of 30.4% and the SA4 region average of 32.0%. This high level of educational attainment is driven by a significant number of residents holding bachelor degrees (28.6%), postgraduate qualifications (17.9%), and graduate diplomas (2.5%). Vocational credentials are also prevalent, with 26.9% of residents aged 15 and above possessing them, including advanced diplomas (13.7%) and certificates (13.2%).

The area's educational participation is notably high, with 38.6% of residents currently enrolled in formal education. This includes 15.1% in primary education, 6.1% in secondary education, and 5.6% pursuing tertiary education.

Transport servicing is low compared to other areas nationally based on assessment of service frequency, route connectivity and accessibility

Tarneit (West) - Mount Cottrell has 19 active public transport stops. These are bus stops serviced by one route, offering a total of 229 weekly passenger trips. The area's transport accessibility is moderate, with residents typically located 485 meters from the nearest stop. Most residents commute outward daily. Car remains the dominant mode of transport at 83%, while 11% use the train. On average, there are 1.4 vehicles per dwelling.

According to the 2021 Census, 25.0% of residents work from home, which may be influenced by COVID-19 conditions. The service frequency averages 32 trips per day across all routes, equating to approximately 12 weekly trips per individual stop.

Tarneit (West) - Mount Cottrell's residents boast exceedingly positive health performance metrics with younger cohorts in particular seeing very low prevalence of common health conditions

Health outcomes data shows excellent results in Tarneit (West) - Mount Cottrell, with AreaSearch's assessment finding low mortality rates and chronic condition prevalence, particularly among younger cohorts. Private health cover is low at approximately 49% of the total population (~9725 people), compared to Greater Melbourne's 56.7% and the national average of 55.7%. The most prevalent medical conditions are asthma (4.5%) and diabetes (2.9%), with 89.0% declaring no medical ailments, compared to Greater Melbourne's 72.6%.

Only 2.4% of residents are aged 65 and over (477 people), lower than Greater Melbourne's 15.0%. Health outcomes among seniors are above average but rank lower nationally than the broader population.

Tarneit (West) - Mount Cottrell is among the most culturally diverse areas in the country based on AreaSearch assessment of a range of language and cultural background related metrics

Tarneit West-Mount Cottrell is among the most culturally diverse areas in Australia, with 73.7% of its population speaking a language other than English at home and 64.7% born overseas as of 2016 census data. Christianity is the dominant religion in Tarneit West-Mount Cottrell, comprising 25.0% of people. However, Hinduism is significantly overrepresented compared to Greater Melbourne's average, making up 22.8% of the population.

The top three ancestry groups based on parents' country of birth are Other at 38.2%, Indian at 26.2%, and English at 7.6%. Notably, Filipino (5.2%), Samoan (1.9%), and Maori (1.2%) ethnicities are overrepresented compared to regional averages.

Tarneit (West) - Mount Cottrell hosts a very young demographic, ranking in the bottom 10% of areas nationwide

Tarneit (West) - Mount Cottrell's median age is 30 years, which is younger than Greater Melbourne's average of 37 and Australia's median of 38. Compared to Greater Melbourne, Tarneit (West) - Mount Cottrell has a higher proportion of residents aged 35-44 (25.8%), but fewer residents aged 55-64 (3.2%). This concentration of 35-44 year-olds is higher than the national average of 14.3%. According to post-2021 Census data, demographic aging is evident with the median age increasing from 29 to 30 years. The 45 to 54 age group has grown from 5.9% to 9.6%, and the 35 to 44 cohort has increased from 22.3% to 25.8%. Conversely, the 25 to 34 cohort has declined from 25.4% to 15.9%, and the 0 to 4 age group has dropped from 13.8% to 11.3%. Population forecasts for 2041 indicate significant demographic changes in Tarneit (West) - Mount Cottrell, with the 35 to 44 cohort projected to grow by 91%, adding 4,654 residents to reach a total of 9,782.