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This analysis uses Suburbs and Localities (SAL) boundaries, which can materially differ from Statistical Areas (SA2) even when sharing the same name.
SAL boundaries are defined by Australia Post and the Australian Bureau of Statistics to represent commonly-known suburb names used in postal addresses.
Statistical Areas (SA2) are designed for census data collection and may combine multiple suburbs or use different geographic boundaries. For comprehensive analysis, consider reviewing both boundary types if available.
est. as @ -- *
2021 Census | -- people
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Trentham has an estimated 1,551 residents, up from 1,382 at the 2021 Census — a change of 169 people, or 12.2%. Growth has averaged 2.0% a year over five years, faster than 78% of areas nationally. Interstate and internal migration accounts for 59.0% of that increase. Density is about 30 people per square kilometre. Population is estimated from ABS Estimated Resident Population releases and GNAF address data, re-based from the 2021 Census and updated annually.
Detail
As of Feb 2026, Trentham's population is estimated at around 1,551. This reflects an increase from the 2021 Census figure of 1,382 people, representing a growth of 169 people (12.2%). The change was inferred from AreaSearch estimates based on ERP data released by ABS in June 2024 and additional validated new addresses since the Census date. This results in a population density ratio of 30 persons per square kilometer. Trentham's growth rate exceeded 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 recent periods. 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 adjusted using weighted aggregation methods for years 2032 to 2041. Based on aggregated SA2-level projections, Trentham is expected to increase by 139 persons to reach a population of approximately 1,690 by the year 2041, reflecting an overall gain of 1.4% over the 17-year period.
Frequently Asked Questions - Population
115 new dwellings have been approved in Trentham over the past five years, an average of 23 a year. That places the area in the 56th percentile for residential development activity nationally, about 15 approvals per 1,000 residents a year. Approvals are currently running at an annualised 8, well below that longer-run average. Figures come from ABS building approvals aggregated to this Suburb (SAL) boundary and are updated monthly as the ABS releases them.
Detail
AreaSearch analysis indicates Trentham had approximately 23 new homes approved annually. Between FY-21 and FY-25, around 115 homes were approved, with another 5 in FY-26 so far. On average, 0.9 people moved to the area per dwelling built over these years. This suggests new construction is meeting or exceeding demand, offering more options for buyers and potentially driving population growth beyond current projections. The average expected construction cost of new homes is $734,000, indicating developers target the premium market segment with higher-end properties. In FY-26, Trentham has registered $4.3 million in commercial approvals, reflecting its residential character.
Compared to Rest of Vic., Trentham records 138.0% more building activity per person, providing ample choice for buyers despite recent easing in construction activity. This high level reflects strong developer confidence in the area. New development consists of 89.0% detached houses and 11.0% townhouses or apartments, preserving Trentham's low-density nature and attracting space-seeking buyers. With around 79 people per dwelling approval, Trentham exhibits growth area characteristics. Future projections estimate Trentham will add 22 residents by 2041. At current development rates, new housing supply should comfortably meet demand, offering good conditions for buyers and potentially supporting population growth beyond current projections.
Frequently Asked Questions - Development
Development applications around Trentham
SOURCE: Planning portals and council registers, compiled by AreaSearch. Distance & bearing measured from the suburb midpoint.
AreaSearch tracks 33 current infrastructure and development projects close to Trentham, worth an estimated $1.49 billion. 13 are already under construction and 13 are due for completion within three years. The pipeline spans sports & recreation, residential development and communities, precincts & urban renewal. Records are compiled from Infrastructure Australia, state agencies, council planning portals and public announcements, reviewed and updated daily, then ranked by proximity, construction stage, completion horizon and project scale.
Detail
Area infrastructure changes significantly influence local performance. AreaSearch identified 0 projects impacting this area. Notable projects are Victorian Renewable Energy Zones, Western Renewables Link, Ballarat Line Upgrade, and Outer Metropolitan Ring/E6 Transport Corridor. The following list details the most relevant ones.
Professional plan users can use the search below to filter and access additional projects.
INFRASTRUCTURE SEARCH
Denotes AI-based impression for illustrative purposes only, not to be taken as definitive under any circumstances. Please follow links and conduct other investigations from the project's source for actual imagery. Developers and project owners wishing us to use original imagery please Contact Us and we will do so.
Frequently Asked Questions - Infrastructure
Ambrosia Estate
A boutique residential land estate providing 65 premium homesites ranging from 2000sqm to 7856sqm, ideal for architectural homes in the Macedon Ranges, less than an hour from Melbourne.
Kyneton Recycled Water Irrigation Project
The project involves the construction of a 14-kilometre pipeline to distribute Class C recycled water from the Kyneton Water Reclamation Plant to local irrigators, enabling the reuse of 200-300 megalitres annually for agricultural irrigation, supporting regional agriculture, and improving environmental outcomes for the Campaspe River by reducing non-compliant discharges.
Kyneton on Riverside
Master planned neighbourhood on the south side of the Campaspe River with staged land releases. The estate offers walking access to Kyneton Station and town amenities with design guidelines and house and land packages available. Stages 6 and 14 are complete and titled, with ongoing sales in stages 10, 11, and 19.
Daylesford to Hanging Rock Shared Trail
Proposed regional shared trail linking Daylesford, Tylden, Woodend, Hanging Rock and Kyneton through a combination of rail trail and shared-use trail sections. The project is being jointly progressed by Macedon Ranges Shire Council and Hepburn Shire Council to improve cycling, walking and horse riding opportunities while supporting regional tourism and local connectivity. Planning and feasibility work continues, with additional state funding required before construction can commence.
Old Kyneton Primary School Redevelopment
Transformation of the former Kyneton Primary School into a creative and community precinct, featuring restored heritage bluestone building for gallery and exhibition spaces, a new contemporary entry building, transformed library for events, and revitalized grounds with 3000 new plants.
Kyneton Showgrounds Master Plan Implementation
Implementation of the Kyneton Showgrounds Master Plan, adopted by Council in March 2023, delivering upgraded netball and little athletics facilities. Little athletics facilities were relocated from the top oval to the bottom oval, including a new storage shed, discus cage and circle, shot put circles, and long jump/triple jump run-ups and pits, with works completed in July 2024. Netball upgrades are being delivered in two stages: Stage 1 is the redevelopment of the M.B. O'Sullivan Pavilion, adding two netball player change rooms, umpire change rooms, amenities, storage, first aid area, admin/office space, and an undercover spectator area, with completion expected by the end of 2025.Stage 2 is the construction of two new asphalt netball courts with LED floodlighting, perimeter fencing, and spectator seating, scheduled to begin late 2025 and conclude before the start of the 2026 netball season. The Victorian Government pledged up to 1.5 million dollars towards the netball facilities, with Council committing a further 1.3 million dollars.
Cornerstone Kyneton
A $150 million masterplanned retail and commercial precinct spanning 62 hectares. The development includes large format retail anchored by a Bunnings warehouse, fast food outlets including McDonalds, a fuel station, and additional commercial warehouse spaces.
Hamilton Road Reconstruction New Gisborne to Riddells Creek
Major road reconstruction and sealing project improving connectivity between New Gisborne and Riddells Creek. Enhanced safety and accessibility for rural communities, supporting regional development and emergency services access.
715 residents of Trentham are employed, from a labour force of 723. Unemployment sits at 1.1%, with participation at 56.6%. Weighted for its industry mix, the area's sectors are forecast to grow about 6.8% nationally over five years. That reflects industry composition only and makes no allowance for local population growth. The working-day population is estimated at 1,365, about 88% of the resident population, so more people leave the area for work than travel in. Unemployment and labour force come from ABS Small Area Labour Markets, updated quarterly; the industry and occupation profile is from the 2021 Census.
Detail
Trentham has an educated workforce with strong professional services representation. Its unemployment rate was 1.1% as of December 2025, according to AreaSearch's statistical area data aggregation. In December 2025715 residents were employed at a rate 2.6% lower than Regional Vic.'s 3.7%. Workforce participation was 56.6%, below Regional Vic.'s 61.5%. Census responses showed 41.5% of residents worked from home, potentially influenced by Covid-19 lockdowns. Employment is concentrated in health care & social assistance, professional & technical services, and construction. Professional & technical employment was notably high at 2.7 times the regional average.
Retail trade had lower representation at 6.8% versus Regional Vic.'s 9.9%. Local employment opportunities seemed limited based on Census working population vs resident population comparison. Over a 12-month period ending in December 2025, labour force and employment decreased by 0.6%, with unemployment remaining stable, compared to Regional Vic.'s 0.6% employment decrease, 0.7% labour force contraction, and 0.1 percentage point unemployment fall. Jobs and Skills Australia's national employment forecasts from May-25 project overall growth of 6.6% over five years and 13.7% over ten years. Applying these projections to Trentham's employment mix suggests local employment could increase by 6.8% over five years and 14.0% over ten years, based on a simple weighting extrapolation for illustrative purposes.
Frequently Asked Questions - Employment
Median household income in Trentham is $1,489 a week (about $77,000 a year), with median personal income at $723 a week. ATO records put median taxable income at $45,218 a year against an average of $66,548. The average runs 47% above the median, a wider spread than most areas and a sign of a concentrated group of high earners. Household income is from the 2021 Census; taxable income is from ATO Taxation Statistics for the latest financial year available, indexed forward using the ABS Wage Price Index.
Detail
AreaSearch aggregated latest postcode level ATO data released for financial year 2023. Trentham's median taxpayer income was $45,218 and average was $66,548. These figures are slightly lower than national averages of $50,954 and $62,728 in Regional Vic. respectively. Based on Wage Price Index growth of 8.25% since financial year 2023, current estimates for Trentham would be approximately $48,948 (median) and $72,038 (average) by September 2025. According to 2021 Census figures, household, family, and personal incomes in Trentham rank modestly between the 33rd and 35th percentiles. Income distribution shows that 28.0% of individuals earn between $1,500 - 2,999 annually, aligning with regional levels at 30.3%.
Housing costs are manageable with 88.2% retained income, but disposable income ranks below average at the 40th percentile. Trentham's SEIFA income ranking places it in the 7th decile.
Frequently Asked Questions - Income
Trentham had 553 occupied dwellings at the 2021 Census, 96% detached houses and 0% apartments. 32% are owned with a mortgage, 12% rented and 56% owned outright. At that Census the median rent was $386 a week and the median mortgage repayment $1,733 a month. Rent absorbs 25.9% of household income here and mortgage repayments 26.9%. Dwelling stock, tenure and housing costs are 2021 Census measures — the only source that counts dwellings at this boundary size.
Detail
The dwelling structure in Trentham, as per the latest Census, consisted of 95.5% houses and 4.5% other dwellings (semi-detached, apartments, 'other' dwellings), compared to Regional Vic.'s 90.1% houses and 9.9% other dwellings. Home ownership in Trentham stood at 55.6%, with the rest of dwellings either mortgaged (32.2%) or rented (12.2%). The median monthly mortgage repayment was $1,733, higher than Regional Vic.'s average, while the median weekly rent was $386, compared to Regional Vic.'s $285. Nationally, Trentham's mortgage repayments were lower than the Australian average of $1,863, but rents exceeded the national figure of $375.
Frequently Asked Questions - Housing
Trentham counted 553 households at the 2021 Census, an estimated 621 today, averaging 2.2 people each. 19% are couples with children, against 43% couples without children. 29% of households are people living alone, and families average 1.6 children. Household and family composition is measured only by the Census, so these are 2021 figures.
Detail
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%. The median household size is 2.2 people, which is smaller than the Regional Vic. average of 2.4.
Frequently Asked Questions - Households
38.8% of adults in Trentham hold a university qualification, including 22.9% with a bachelor degree and 10.5% with postgraduate qualifications, higher than 85% of areas nationally. A further 20.9% hold a vocational qualification. 1 school serves the area, with 88 enrolment places and an average ICSEA of 1,076 against a national benchmark of 1,000. Qualifications come from the 2021 Census; school enrolments, ICSEA and results come from ACARA's current release.
Detail
Trentham's educational attainment is notably higher than broader standards. Among residents aged 15+, 38.8% possess university qualifications, compared to 21.7% in the rest of Victoria and 24.6% in the SA4 region. This educational advantage indicates strong potential for knowledge-based opportunities. Bachelor degrees are 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 aged 15+ holding such qualifications – advanced diplomas comprise 13.9% and certificates make up 20.9%. Notably, 24.7% of the population is currently engaged in formal education, including 9.0% in primary education, 7.1% in secondary education, and 2.9% pursuing tertiary education.
Frequently Asked Questions - Education
Schools Detail
Getting around Trentham means driving: households keep an average of 1.6 vehicles, and scheduled services reach only a handful of stops. Service data is built from operators' published GTFS timetables; vehicle ownership is from the 2021 Census.
Detail
Trentham has one active public transport stop. It is served by one route offering 44 weekly passenger trips in total. Transport accessibility is limited, with residents typically located 709 meters from the nearest stop. Most residents commute outward daily. Car remains the dominant mode of transport at 90%, while 8% walk. On average, there are 1.6 vehicles per dwelling. According to the 2021 Census, 41.5% of residents work from home, which may reflect COVID-19 conditions. Service frequency averages six trips per day across all routes, equating to approximately 44 weekly trips per individual stop.
Frequently Asked Questions - Transport
Transport Stops Detail
61.7% of residents in Trentham report no long-term health condition, a healthier profile than 75% of areas nationally. 7.1% need daily assistance with core activities, and 53.2% hold private health cover. The standardised death rate runs at 3.6 per 1,000 residents. Health conditions, assistance needs and insurance are 2021 Census measures; the death rate comes from current ABS releases.
Detail
Analysis of health metrics shows strong performance throughout Trentham. Mortality rates and chronic condition prevalence were very low across all age groups. Private health cover was approximately 53% of the total population (~824 people), leading the average SA2 area's rate, which is 50.5% in Regional Vic. The most common medical conditions were arthritis (11.8%) and mental health issues (7.8%). 61.7% of residents declared themselves completely clear of medical ailments, compared to 63.4% across Regional Vic. Working-age residents showed above average prevalence of chronic health conditions. Trentham had 34.6% of residents aged 65 and over (536 people), higher than Regional Vic.'s 23.9%.
Health outcomes among seniors were particularly strong, with national rankings broadly in line with the general population.
Frequently Asked Questions - Health
Trentham is largely Australian-born, at 80.5% of residents, with 3.3% speaking a language other than English at home. The largest reported ancestries are English (33.2%) and Australian (23.0%). Ancestry, language and country of birth are counted only by the Census, so these are 2021 figures.
Detail
Trentham's cultural diversity was found to be below average, with 80.5% of its population born in Australia, 88.5% being citizens, and 96.7% speaking English only at home. Christianity is the dominant religion in Trentham, comprising 38.0% of people, but Judaism is notably underrepresented at 0.0%, compared to Regional Vic's average of 0.1%. Regarding ancestry, the top three groups are English (33.2%), Australian (23.0%), and Irish (14.9%). The Australian figure is lower than the regional average of 29.6%, while Irish representation is substantially higher than the regional average of 9.7%. Additionally, certain ethnic groups show notable divergences: Scottish at 11.0% in Trentham versus 8.8% regionally, Welsh at 0.8% versus 0.4%, and French at 0.8% versus 0.3%.
Frequently Asked Questions - Diversity
The median resident of Trentham is 56, older than 97% of areas nationally. 13.0% of residents are aged 15 to 34. Age cohorts are not raw Census counts: the Census split is re-based to the latest ABS population estimates and state projections.
Detail
The median age in Trentham is 56 years, notably exceeding Regional Victoria's average of 43 years and significantly higher than Australia's 38 years. The 55-64 age group shows strong representation at 20.6%, compared to Regional Victoria, while the 25-34 cohort is less prevalent at 5.5%. This concentration in the 55-64 age group 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 7.5%, while the 75 to 84 cohort increased from 10.6% to 12.1%. Conversely, the 45 to 54 cohort has declined from 12.8% to 11.7%, and the 5 to 14 group dropped from 8.8% to 7.8%.
Looking ahead to 2041, demographic projections reveal significant shifts in Trentham's age structure. The 25 to 34 cohort shows the strongest projected growth at 32%, adding 27 residents to reach 113. Population declines are projected for the 5 to 14 and 65 to 74 cohorts.
Frequently Asked Questions - Age
Data & MethodBoundaries, Sources & Method for Trentham
9 of 14 data sections on this page were updated within the last 12 months — the newest current to Aug 2026.
Everything is aggregated to the Suburb (SAL) boundary shown above, on a 2021 Census baseline. Only 3 sections — housing, households and cultural diversity — still wait on the 2026 Census.
The ledger — source, cycle and currency by section
| Section | Source & update cycle | Currency |
|---|---|---|
| Updated within the last 12 months 9 sections | ||
| Population | ABS, GNAF, Geoscience Australia Annual (ABS ERP) | May 2026 3 months ago headline measures · 2021 Census baseline |
| Re-based to the ABS Estimated Resident Population (June 2024 release) and updated with new dwellings from GNAF address data. Current to May 2026, with the 2021 Census supplying the small-area baseline. | ||
| Age profile | ABS, Geoscience Australia, State governments Annual | May 2026 3 months ago headline measures · 2021 Census baseline |
| Age cohorts are re-based to the latest ABS population estimates and state projections, current to May 2026. Each cohort is held as a Census baseline and a current estimate. | ||
| Development & approvals | ABS, GNAF Monthly (ABS approvals) | Jun 2026 2 months ago headline measures · May 2026 baseline |
| Property sales & rents | Valuer General, Rental Board, ABS Weekly sales, quarterly rents | Aug 2026 this month all 21 measures |
| Sales from the state Valuer General register, refreshed weekly, and rents from quarterly rental bond lodgements. Both are read live each time this page loads, current to Aug 2026. | ||
| Infrastructure projects | Infrastructure Australia, Local governments Daily | May 2026 3 months ago all 2 projects tracked here |
| Project pipeline maintained continuously from Infrastructure Australia, state agencies, local government and public announcements. Records are added and revised daily; this area was last updated May 2026. | ||
| Employment | ABS, DEWR, JSA Quarterly (ABS SALM) | Mar 2026 5 months ago headline measures · 2021 Census baseline |
| Unemployment and labour force from ABS Small Area Labour Markets, current to Mar 2026. The growth outlook applies Department of Employment (now Jobs and Skills Australia) forecasts for all 19 industry divisions to the local industry mix, so it measures sector composition rather than local expansion and makes no allowance for population growth. Job demand comes from the same agency via its Internet Vacancy Index; industry and occupation structure from the 2021 Census. | ||
| Education | ABS, ACARA Annual (ACARA) | Aug 2026 this month headline measures · 2021 Census baseline |
| Transport | ABS, State Transport Departments Each timetable release | Jul 2026 last month headline measures · 2021 Census baseline |
| Services & amenities | Provider directories, ACECQA Continuous | Jul 2026 last month all 14 measures |
| Annual and financial-year sources 2 sections | ||
| Income | ABS, ATO Annual (ATO) | FY 2023 3 years ago headline measures · 2021 Census baseline |
| ATO taxable income statistics for FY 2023, indexed forward using the Wage Price Index. Census household income provides the distribution detail. | ||
| Health | ABS, ATO Annual | 2024 2 years ago headline measures · 2021 Census baseline |
| Census-measured — next update: 2026 Census 3 sections No more current small-area source exists for these, so they are labelled as Census-measured rather than implied to be current. | ||
| Housing | ABS 5-yearly (Census) | 2021 Census next update 2026 all 30 measures |
| Households | ABS 5-yearly (Census) | 2021 Census next update 2026 all 18 measures |
| Cultural diversity | ABS, Geoscience Australia 5-yearly (Census) | 2021 Census next update 2026 all 44 measures |
"Currency" is the most recent release feeding that section. Where the Census supplies the structural baseline underneath a current headline figure, the row says so.
How the numbers are built
Population
The Census provides the small-area baseline, aggregated from mesh blocks to this boundary. It is then re-based to the ABS Estimated Resident Population (June 2024 release), and new dwellings built since Census night are counted from address data — 40 validated new addresses here. The headline figure is therefore a current estimate for Feb 2026, not a 2021 count (1,382 at the 2021 Census → 1,551 now). Annual growth rates are compound (CAGR), not simple averages.
Age profile
Cohort shares are not raw Census counts. Every cohort is held as a pair — the Census baseline and a current estimate — and the split is re-based using ERP and state population projections, current to Feb 2026. Median age is the Census median plus modelled change since. Charts that show both are labelled "2021 Census vs Current Estimate".
Property sales
Sourced from the state valuation authority's sales register — current, not Census, and refreshed weekly. Medians are calculated from settled transactions in the period shown; periods with very low transaction counts are flagged or suppressed, because a handful of sales can move a median substantially.
Rents
Derived from state rental bond lodgement data, by dwelling type and bedroom count. Bonds are lodged at the start of a new tenancy, so this reflects new lettings, not the whole rented stock.
Development & infrastructure
Building approvals come from current ABS releases; development applications are collected from council and state planning portals; the infrastructure pipeline is compiled from Infrastructure Australia and local government sources. Applications are matched to this boundary by address or coordinates, so very recent lodgements may not yet appear.
Employment & income
Industry and occupation structure comes from the Census, but the headline labour-market indicators do not. Unemployment and labour force are derived from ABS Small Area Labour Markets (quarterly). The employment outlook applies Department of Employment forecasts for all 19 industry divisions to this area's own industry mix (the agency is now Jobs and Skills Australia), as does the Internet Vacancy Index used for job demand. Because it is weighted on industry composition alone, that outlook carries no allowance for local population growth — in fast-growing areas the real rise in local jobs will typically be higher. Income combines Census household income with ATO taxable-income statistics for FY 2023, indexed forward using the Wage Price Index.
Education, transport & amenities
School enrolments, ICSEA and performance come from ACARA's current release, not the Census. Public transport stops and service frequency are derived from GTFS timetable feeds published by state transport departments. Services and amenities are proximity and count scores built from provider directories, refreshed on their own cycle. The Census contributes only the travel-to-work and qualification measures.
Rankings and benchmarks. Where we rank this area, the comparison set is every area of the same boundary type — suburbs against suburbs, SA2s against SA2s. Benchmarks compare this area against its greater capital city region and the national figure for the same measure and period.
Limits worth knowing. Small areas carry larger error margins, and the ABS introduces small random adjustments to Census counts to protect confidentiality — so totals may not sum exactly. Estimates re-based from regional data describe the area's expected trajectory, not a direct count of it. Figures are indicative for research and are not financial, planning or valuation advice.
Cross-check us. The Census baseline for this boundary is at ABS 2021 Census QuickStats (SAL22577). QuickStats reports 2021 only — the figures on this page are more current wherever the ledger shows a later date.