IRSAD
Relative Socio-economic Advantage and Disadvantage
Score 1,041
Measures relative socio-economic advantage and disadvantage.
Within AustraliaDecile 8 of 10
Within VictoriaDecile 8 of 10
For state-level context, explore the Victoria economy.
Housing
Trentham
Victoria · Census 2021
$898k-8.4% yrmedian house · Dec 2025
Trentham is a leafy residential suburb of Hepburn.
Median house price
$898k62nd pctile
of 766 priced VIC suburbs
Household income
$1,489/wk45th pctile
of 2,844 VIC suburbs
Amenity score
38/10071st pctile
of 1,338 rated VIC suburbs
Median house price
Rolling median of settled transfers, state Valuer-General open data (CC BY 4.0). Median of Victoria suburb medians: $765k.
How it compares
Median house price62nd percentile
<$210k766 priced suburbs$2.9M+
Household income / wk45th percentile
<$599ABS Census 2021$3,249+
Median house price+6% vs Greater Melbourne · +44% vs Rest of Vic.
MelbourneRest of state
Greater Melbourne $850k · Rest of Vic. $625kTrentham $898k
Percentiles rank this suburb against Victoria suburbs that carry the metric — never across states, and never against suburbs where it is missing. Price references are ABS median established-house transfer prices for the Mar 2026 quarter (CC BY 4.0); the suburb figure is a Valuer-General median over a different window, so read the gap as indicative. Income references are the Census 2021 median of the middle suburb in Victoria and nationally, not a household-weighted median.
People & housing
Population
1,382
Median age
56 yrs
Income / person / wk
$723
Household income / wk
$1,489
▼ 6% vs VIC
Median rent / wk
$386
Mortgage / month
$1,733
Who lives here
- Couples with children
- 19%
- −14 pts vs VIC
- Living alone
- 29%
- +3 pts vs VIC
- Unemployment
- 2%
- −3 pts vs VIC
- In the labour force
- 49%
- −13 pts vs VIC
- Bachelor degree or higher
- 32%
- +3 pts vs VIC
- Earning $1–$499 a week
- 27%
- +4 pts vs VIC
- Earning $2,000+ a week
- 13%
- level with VIC
Households for the family mix, residents aged 15+ for work, education and income; unemployment is a share of the labour force. VIC figures weight each suburb by its dwellings or residents. ABS Census 2021 (CC BY 4.0). Withheld for very small populations — under 100 residents, or under 50 dwellings, households or workers for the shares that count those.
Housing stock
553 occupied private dwellings
- Separate house 96%
- Flat or apartment 0%
- Semi, terrace & other 4%
VIC: 73% separate houses · 12% flats & apartments
- Owned outright 53%
- Mortgaged 31%
- Rented 11%
- Other & not stated 4%
VIC: 32% owned outright · 36% mortgaged · 29% rented
ABS Census 2021 (CC BY 4.0). Withheld for very small populations — under 100 residents, or under 50 dwellings, households or workers for the shares that count those.
Socio-economic profile
IRSD
Relative Socio-economic Disadvantage
Score 1,055
Measures relative socio-economic disadvantage only; a higher score means less disadvantage.
Within AustraliaDecile 8 of 10
Within VictoriaDecile 8 of 10
IER
Economic Resources
Score 1,044
Measures access to economic resources, including income, housing costs and assets.
Within AustraliaDecile 7 of 10
Within VictoriaDecile 6 of 10
IEO
Education and Occupation
Score 1,083
Measures relative education and occupation characteristics.
Within AustraliaDecile 10 of 10
Within VictoriaDecile 10 of 10
Scores are standardised across Australia to a mean of 1,000 and a standard deviation of 100. Deciles run from 1 (most disadvantaged) to 10 (least disadvantaged).
Source: ABS SEIFA 2021 (CC BY 4.0).
Terrain & hazard exposure
Median elevation
701 m
range 551–864 m
Land below 5 m
0%
0% below 2 m
Shares are the proportion of the suburb's land area. Land where Landsat saw water in at least 1% of clear passes since 1987, excluding permanent water and filtered by DEA's confidence layer. Satellites miss flood peaks, so this is a floor, not a risk estimate; dense high-rise cores can still register tower shadow as water. A statutory planning-control boundary, not a flood extent, and it can lag the latest flood study. Designated for development control; a designation, not a prediction of fire behaviour. The Building Regulations' Designated Bushfire Prone Area, the like-for-like of NSW Bush Fire Prone Land; the narrower Bushfire Management Overlay is a separate planning control. Elevation is orthometric height from a 30 m model; no hydrology or drainage is modelled.
Planning & zoning
Zoning mix (share of the suburb's land)
Show on map →- Rural59%
- Conservation27%
- Low-density residential9.1%
- Infrastructure & special purpose3.5%
- Open space & recreation0.9%
- Industrial & employment0.4%
- Centres & mixed use0.1%
In a heritage area
1.3%
conservation area / Heritage Overlay
Show on map →Planning instruments: Hepburn Planning Scheme; Moorabool Planning Scheme. Zones are grouped into ten families so states compare; the council's own scheme is the authority for any one lot. Source: Vicmap Planning zones; Vicmap Heritage Overlay.
Local amenities
Schools
1
Supermarkets
2
Pubs & bars
2
Parks
6
Libraries
0
GP clinics
3
Pharmacies
1
Hospitals
0
Nearest supermarket
1.1 km
Nearest train
0.8 km
Nearest hospital
17.0 km
Distance to coast
69 km
NBN
FIXED WIRELESS
Grocery mix: 1 IGA. Amenity counts via © OpenStreetMap contributors (ODbL) & Geoscience Australia HealthDirect (CC BY 4.0). Distance to coast derived from ABS state boundaries (CC BY 4.0).
Culture & community
- Dominant religion
- No religion · 53%
- Top language at home
- French · 0%
- No religion
- 53%
- Born overseas
- 19%
- English only at home
- 97%
Schools by sector
- Government / Catholic / Indep.
- 1 / 0 / 0
- Primary / Secondary
- 1 / 0
- Nearest secondary
- 11.0 km
School sector & type: ACARA (Australian Curriculum, Assessment and Reporting Authority), School Location dataset.
Local council
- Council (LGA)
- Hepburn
- Population
- 17,011 (2025) · +1.1% in a year
- Area / density
- 1,473 km² · 12/km²
- Council medians (2021)
- age 52 · $1,281/wk household income · $295/wk rent
- Council-wide house median (2023-24)
- $750k
- Federal grants
- $6.63M in 2025-26 · $390/resident
- Avg rates / property
- $1,748
- Operating result
- -6.1%
- Asset renewal
- 79%
- Website
- hepburn.vic.gov.au
Council boundaries and the suburb split: ABS ASGS LGA 2024, allocated by 2021 mesh block and weighted by Census 2021 residents. Population: ABS Estimated Resident Population 2025. Medians: ABS Census 2021. House median: ABS Data by Region, established-house transfers across the whole council, financial year 2023-24. Federal grants: Financial Assistance Grants, Dept of Infrastructure. Financials: VIC Local Government Performance Reporting 2024-25, Local Government Victoria. ABS, Dept of Infrastructure and Local Government Victoria data CC BY 4.0; council website from Wikidata (CC0).
Representation
- Federal division
- Ballarat
- Federal MP
- Catherine King (ALP)
- Two-party-preferred
- Labor 61% 2PP
- State electorate
- Macedon
- State MP
- Mary-Anne Thomas (ALP)
Comparable suburbs
Closest by median house price across VIC.
Similar suburbs
Closest demographic & amenity profile, nationally.
Sources: ABS ASGS boundaries (CC BY 4.0); ABS Census 2021 (CC BY 4.0); Victoria Valuer-General settled transfers (CC BY 4.0); ACARA School Locations (CC BY 4.0); © OpenStreetMap contributors (ODbL); Australian Electoral Commission (CC BY 4.0); Geoscience Australia 1 Second DEM-S (CC BY 4.0); DEA Water Observations Statistics, Geoscience Australia (CC BY 4.0); Vicmap Planning overlays, Department of Transport and Planning Victoria (CC BY 4.0); Designated Bushfire Prone Area, Department of Transport and Planning Victoria (CC BY 4.0); Vicmap Planning — Planning Scheme Zones, Department of Transport and Planning Victoria (CC BY 4.0); Vicmap Planning — Heritage Overlay, Department of Transport and Planning Victoria (CC BY 4.0); Wikipedia state-member tables (CC BY-SA 4.0). Not financial advice.