Trentham

Population growth drivers in Trentham are strong compared to national averages based on AreaSearch's ranking of recent, and medium to long-term trends

As of Feb 2026, Trentham's population is estimated at around 1,551, reflecting an increase of 169 people since the 2021 Census which reported a population of 1,382. This growth was inferred from AreaSearch's estimation of the resident population at 1,434 following examination of ABS ERP data released in June 2024 and validation of additional 40 new addresses since the Census date. Trentham's population density is approximately 30 persons per square kilometer. Between 2016 and 2021, Trentham experienced a 12.2% growth rate, exceeding both the SA3 area (7.3%) and Rest of Vic., marking it as a growth leader in the region. Interstate migration contributed approximately 59.0% of overall population gains during this period. AreaSearch projections for Trentham are based on ABS/Geoscience Australia data released in 2024 with a base year of 2022, and VIC State Government's Regional/LGA projections released in 2023 adjusted using weighted aggregation method to SA2 levels.

According to these projections, Trentham is expected to grow by approximately 145 persons by 2041, reflecting an increase of about 1.4% over the 17-year period.

Residential development activity is slightly higher than average within Trentham when compared nationally

Based on AreaSearch analysis of ABS building approval numbers, allocated from statistical area data, Trentham has experienced around 23 dwellings receiving development approval each year. Approximately 115 homes have been approved over the past 5 financial years, between FY-21 and FY-25, with an additional 4 approved so far in FY-26. On average, about 0.9 new residents arrive per new home annually over these years.

This indicates that new construction is meeting or exceeding demand, providing more options for buyers and potentially supporting population growth beyond current projections. The average expected construction cost value of new dwellings is around $734,000, suggesting developers are targeting the premium market segment with higher-end properties. In FY-26 up to now, Trentham has recorded approximately $4.3 million in commercial development approvals, reflecting the area's residential character. Compared to Rest of Vic., Trentham has 135.0% more building activity per person, offering buyers ample choice. However, development activity has moderated in recent periods.

This high level of activity is well above the national average, indicating strong developer confidence in the area. New development in Trentham consists of approximately 89.0% standalone homes and 11.0% medium to high-density housing, maintaining the area's traditional low-density character with a focus on family homes appealing to those seeking space. With around 79 people per approval, Trentham reflects an area experiencing growth. According to AreaSearch's latest quarterly estimate, Trentham is expected to grow by approximately 22 residents through to 2041. At current development rates, new housing supply should comfortably meet demand, providing good conditions for buyers and potentially supporting growth beyond current population projections.

Trentham has very high levels of nearby infrastructure activity, ranking in the top 20% nationally

No changes can significantly affect a region's performance like modifications to local infrastructure, major projects, and planning initiatives. As of AreaSearch records, zero projects have been identified as potentially impacting this area. Notable ones include Victorian Renewable Energy Zones, Western Renewables Link, Ballarat Line Upgrade, and Outer Metropolitan Ring/E6 Transport Corridor. The following list outlines those likely to be most pertinent:.

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AreaSearch analysis reveals Trentham significantly outperforming the majority of regions assessed nationwide

Trentham has an educated workforce with professional services well represented. Its unemployment rate is 1.1%, with estimated employment growth of 2.0% in the past year (AreaSearch data). As of September 2025711 residents are employed at a 2.6% lower unemployment rate than Rest of Vic.'s 3.8%.

Workforce participation is 57.7%, below Rest of Vic.'s 61.4%. Home workership stands high at 41.5%. Key sectors include health care & social assistance, professional & technical, and construction. Trentham specializes in professional & technical jobs, with a share 2.7 times the regional level.

Retail trade is under-represented at 6.8% compared to Rest of Vic.'s 9.9%. Local employment opportunities appear limited based on Census working population vs resident population data. Over one year (May-24 to May-25), Trentham's employment and labour force both increased by 2.0%, keeping unemployment flat. In contrast, Rest of Vic. saw employment decline by 0.7% and labour force decline by 0.6%. National employment forecasts from Jobs and Skills Australia project a 6.6% increase over five years and 13.7% over ten years. Applying these projections to Trentham's mix suggests local employment growth of 6.8% in five years and 14.0% in ten years, though this is an illustrative extrapolation not accounting for localized population changes.

Income figures position the area below 75% of locations analysed nationally by AreaSearch

The median taxpayer income in Trentham is $45,218, with an average of $66,548, according to the latest postcode level ATO data aggregated by AreaSearch for the financial year 2023. This is slightly below the national average. In contrast, Rest of Vic.'s median income is $50,954 and average income is $62,728. By September 2025, estimated incomes would be approximately $48,948 (median) and $72,038 (average), based on Wage Price Index growth of 8.25%. According to the 2021 Census, household, family, and personal incomes in Trentham rank modestly, between the 33rd and 35th percentiles. The earnings profile shows that 28.0% of locals (434 people) fall into the $1,500 - 2,999 income category. Housing costs are manageable with 88.2% retained, but disposable income is below average at the 40th percentile. Trentham's SEIFA income ranking places it in the 7th decile.

Trentham is characterized by a predominantly suburban housing profile, with above-average rates of outright home ownership

Trentham's dwelling structure, as per the latest Census, consisted of 95.5% houses and 4.5% other dwellings (semi-detached, apartments, 'other' dwellings). Non-Metro Vic., in comparison, had 90.1% houses and 9.9% other dwellings. Home ownership in Trentham stood at 55.6%, with mortgaged dwellings at 32.2% and rented ones at 12.2%. The median monthly mortgage repayment was $1,733, higher than Non-Metro Vic.'s average. The median weekly rent figure was $386, compared to Non-Metro Vic.'s $285. Nationally, Trentham's mortgage repayments were lower than the Australian average of $1,863, while rents exceeded the national figure of $375.

Trentham has a typical household mix, with a lower-than-average median household size

Family households constitute 69.4% of all households, including 18.8% couples with children, 43.2% couples without children, and 5.8% single parent families. Non-family households comprise the remaining 30.6%, with lone person households at 29.3% and group households making up 2.2% of the total. The median household size is 2.2 people, which is smaller than the Rest of Vic. average of 2.4.

Trentham shows strong educational performance, ranking in the upper quartile nationally when assessed across multiple qualification and achievement indicators

Trentham's residents aged 15+, with a university qualification rate of 38.8%, exceed broader benchmarks such as Rest of Vic.'s 21.7% and SA4 region's 24.6%. Bachelor degrees are the most prevalent at 22.9%, followed by postgraduate qualifications (10.5%) and graduate diplomas (5.4%). Vocational credentials are also prominent, with 34.8% of residents holding such qualifications – advanced diplomas (13.9%) and certificates (20.9%). Notably, 24.7% of Trentham's population is actively pursuing formal education, including 9.0% in primary, 7.1% in secondary, and 2.9% in tertiary education.

A substantial 24.7% of the population actively pursues formal education. This includes 9.0% in primary education, 7.1% in secondary education, and 2.9% pursuing tertiary education.

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

Trentham has one active public transport stop. This stop is served by one route that offers 44 weekly passenger trips in total. The accessibility of transport in Trentham is rated as limited, with residents typically living 709 meters away from the nearest transport stop. Most residents commute outwards due to its residential nature. Cars are the dominant mode of transport, used by 90% of residents, while walking accounts for 8%. On average, there are 1.6 vehicles per dwelling in Trentham.

According to the 2021 Census, a high proportion of residents, 41.5%, work from home, which may be due to COVID-19 conditions. The service frequency averages six trips per day across all routes, resulting in approximately 44 weekly trips per individual stop.

Trentham's residents are extremely healthy with very low prevalence of common health conditions across all age groups

Analysis of health metrics shows strong performance throughout Trentham. AreaSearch's assessment indicates very low prevalence of common health conditions across all age groups.

The rate of private health cover is approximately 53% of the total population (~824 people), leading that of the average SA2 area, compared to 50.5% across Rest of Vic. The most common medical conditions are arthritis and mental health issues, impacting 11.8 and 7.8% of residents respectively. A total of 61.7% of residents declare themselves completely clear of medical ailments, compared to 63.4% across Rest of Vic. Working-age residents show above average prevalence of chronic health conditions. The area has 33.6% of residents aged 65 and over (521 people), higher than the 23.9% in Rest of Vic. Health outcomes among seniors are particularly strong, with national rankings broadly in line with the general population.

Trentham ranks below the Australian average when compared to other local markets across a number of language and cultural background related metrics

Trentham, as per the Australian Bureau of Statistics Census Data from June 2016, showed a lower than average cultural diversity. The population born in Australia constituted 80.5%, with 88.5% being citizens and 96.7% speaking English only at home. Christianity was the predominant religion, comprising 38.0%.

Notably, Judaism had no representation (0.0%) compared to the Rest of Vic's average of 0.1%. In terms of ancestry, the top groups were English at 33.2%, Australian at 23.0% (lower than the regional average of 29.6%), and Irish at 14.9% (higher than the regional average of 9.7%). Other ethnicities with notable representation included Scottish at 11.0% (vs regional 8.8%), Welsh at 0.8% (vs regional 0.4%), and French at 0.8% (vs regional 0.3%).

Trentham ranks among the oldest 10% of areas nationwide

The median age in Trentham is 56 years, notably higher than Rest of Vic.'s average of 43 years, and significantly higher than Australia's median age of 38 years. The 55-64 age group makes up 20.1% of Trentham's population, compared to Rest of Vic., while the 25-34 cohort is less prevalent at 5.3%, with a concentration in this age group that is well above the national average of 11.2%. According to the 2021 Census, the 15 to 24 age group has grown from 5.5% to 7.6% of Trentham's population, while the 75 to 84 cohort increased from 10.6% to 11.7%. Conversely, the 45 to 54 cohort has declined from 12.8% to 11.4%, and the 5 to 14 group dropped from 8.8% to 7.6%. Looking ahead to 2041, demographic projections reveal significant shifts in Trentham's age structure, with the strongest projected growth in the 85+ cohort at 55%, adding 27 residents to reach 77. However, population declines are projected for the 65 to 74 and 5 to 14 cohorts.