Median house price
—
No data available
SA · Adelaide Hills Council
Millbrook, 5231
Est. population · Jun 2025
144
Growth (1 yr)
+1.4%
Growth (5 yr)
+2.9%
Median age
50
Median income
$1,031/wk
Employment rate
53.8%
Languages at home
Mostly English at home
2021 Census · usual residence
- Excellent transport
- Heritage area
Suburb profile
Millbrook is a hillside smaller community in Adelaide Hills Council, with elevated streets and a greener, quieter pace. Retirees and empty-nesters are well represented here, with multiple generations sharing the same neighbourhood. The town centre holds its own, with enough local flavour to make staying close to home appealing.
Open space is thinner than in many comparable suburbs, so residents often travel a little further for a longer park day. A car helps for most daily errands, though buses still link the suburb further afield. Housing is expensive relative to much of the state.
Crime reports are up on the previous period. The streetscape feels settled and established, with older homes giving the area a familiar, lived-in look.
At a glance
Millbrook snapshot
A quick read of housing, growth, livability, and risk
Median rent
—
No data available
Population (ERP)
144
+1.4% annual growth
Dwelling vacancy
11.8%
Census unoccupied dwellings
How it compares
Relative standing using percentiles, ranks, and national deciles
Safety
30th
percentile in state (higher = safer)
Pop. growth
83rd
percentile in SA
Advantage (IRSAD)
9/10
national SEIFA decile
Population growth
Recent ERP change over 1 and 5 years
Housing mix
Dwelling types from the 2021 Census
Risks & flags
Quick scan — open a section below for full context
Living here
Population
Estimated resident population
144(June 2025)
+1.4% annual · +2.9% over 5 years · 83th percentile in SA
Growth figures & methodology
- Annual growth
- +1.4%
- 5-year growth
- +2.9%
- Change in 1 year
- +2
- Change in 5 years
- +4
- Growth rank in SA
- 83th percentile
ABS Estimated Resident Population allocated to this suburb from SA2-level data. Not an official ABS suburb count.
Methodology
Figures are allocated from ABS Estimated Resident Population at Statistical Area Level 2 (SA2), using 2021 Census share within overlapping SA2 regions. Where Census data is unavailable, area overlap is used instead.
The dashed chart line is a simple growth-trend estimate to June 2030 (~150), extrapolated at +0.3% average annual growth since 2011. It is illustrative only — not an official ABS forecast.
2021 Census figures
2021 Census
- Population
- 133
- Median age
- 50
- Median household income / week
- $1,031
- Dwelling vacancy
- 11.8%
- Unoccupied private dwellings
- 6 of 51
- Median monthly mortgage
- $2,492
- Employment rate
- 53.8%
- Dwelling mix (houses / semi / flats)
- 30 / 0 / 0 (+ 14 other)
Contributes to desirability score · Community (5%)
Employment, household income and age diversity (2021 Census)
Data sources & freshness
- 2021 Census — General Community Profile — Australian Bureau of Statistics · Updated
The 2026 Census runs in August 2026; suburb-level updates are expected from mid-2027.
- Estimated Resident Population — Australian Bureau of Statistics · 2025 · Updated · SA2 ERP allocated to suburb boundaries
Community & culture
No 2021 Census cultural diversity data for this suburb yet.
Data sources & freshness
- 2021 Census — General Community Profile — Australian Bureau of Statistics · Updated
The 2026 Census runs in August 2026; suburb-level updates are expected from mid-2027.
Crime & safety
Reported offences increased compared with the previous period.
Offence counts & rates
- Total offences (2024–25)
- 3
- Against the person
- 3
- Against property
- 0
- Rate per 1,000 residents
- 20.8
- Person-crime prevalence
- About 1 in 44 residents
- State safety percentile
- 30.4th (lower crime is better)
- Family & domestic abuse offences
- 2
- Increase (daily rate)
- +200.8%
Most common offence types
- Serious Assault Not Resulting In Injury2
- Serious Assault Resulting In Injury1
Contributes to desirability score · Safety (18%)
Crime rate and year-on-year trend
Data sources & freshness
- SAPOL reported crime statistics — South Australia Police — OpenData · 2023-24 → 2024-25; 2024-25 · Updated · Financial-year releases
Family & Lifestyle
Public transport
2 public transport stops in this suburb
- Gorge Rd / Redden Dr - North side (Cudlee Creek Hall)
- Gorge Rd / Redden Dr - South side (Cudlee Creek Hall)
Contributes to desirability score · Accessibility (15%)
Public transport stop coverage
Data sources & freshness
- Adelaide Metro GTFS stops — Department for Infrastructure and Transport (SA) · current · Updated
Amenities
1 nearby amenities within ~1.5 km
Local character & venue list
Local character
- Limited walkable amenities nearby
- Walkability proxy
- 3/100
- Cafés per 1,000 residents
- 0
- Food & drink per 1,000 residents
- 0
- Parks per 1,000 residents
- 0
Other(1)
- Tally Ho LodgeGuest House
Names and addresses from OpenStreetMap. Unnamed venues show as their type (e.g. Cafe). Transport stops are summarised by type rather than listed individually.
Contributes to desirability score · Lifestyle (15%)
Food, shopping, recreation and sport (OpenStreetMap)
Data sources & freshness
- Local amenity insights — Suburb Guide (derived) · current · Updated
- OpenStreetMap amenities — OpenStreetMap contributors · current · Updated
Health access
- Nearest hospital
- Gumeracha District Soldiers' Memorial Hospital (6.7 km)
- Nearest hospital type
- Public Hospital
- Nearest hospital emergency
- Emergency department
Contributes to desirability score · Accessibility (15%)
Hospitals and GP clinics
Data sources & freshness
- Hospitals & GP Plus clinics (SA) — SA Health · current · Updated
NDIS participation
- NDIS participants (31 March 2026)
- 4
- Participants per 1,000 residents
- 27.8
Active NDIS participants allocated from NDIA Statistical Area Level 2 (SA2, ASGS 2016) counts to this suburb boundary. Not an official suburb-level NDIS figure · as at 31 March 2026.
For NDIS spend and service-demand exploration by SA2 or postcode, see the Care Sector Demand Map.
Data sources & freshness
- NDIS participants by SA2 — National Disability Insurance Agency · 2026-Q1 · Updated · Quarterly SA2 counts allocated to suburb boundaries
Weather
Typical conditions by season for suburbs in the same ~44 km climate area. Rainfall totals are summed from monthly WorldClim layers; rainy-day counts are approximate.
Summer (Dec–Feb)
- Usual max / min
- 29° / 14°
- Rainfall
- 67 mm · ~8 rainy days
Autumn (Mar–May)
- Usual max / min
- 23° / 10°
- Rainfall
- 97 mm · ~12 rainy days
Winter (Jun–Aug)
- Usual max / min
- 16° / 6°
- Rainfall
- 148 mm · ~18 rainy days
Spring (Sep–Nov)
- Usual max / min
- 22° / 9°
- Rainfall
- 119 mm · ~15 rainy days
Contributes to desirability score · Lifestyle (15%)
Temperature and humidity comfort
Data sources & freshness
- Seasonal climate normals — WorldClim 2.1 · Updated
Future & Planning
Planning & development
Development applications from PlanSA register (lodged 2020–2026) and EPA licensed activities.
1 planning-related records
2024· 1 proposal
September 2024
- Outbuilding (retrospective)176B ADELAIDE GULLY RD MILLBROOK SA 5231Under Assessment
Contributes to desirability score · Future Growth (7%)
Development and planning activity
Data sources & freshness
- PlanSA development applications & EPA licences — Government of South Australia — PlanSA · 2020–2026 · Updated
Roadworks & transport
7 active roadworks / incidents
- ConstructionNorth East Road, Fidlers Hill Rd30 Sep 2025 – 17 Aug 2026
- ConstructionNorth East Road, Millbrook Rd30 Sep 2025 – 17 Aug 2026
- ConstructionNorth East Road, 3230 Sep 2025 – 17 Aug 2026
- ConstructionNorth East Road, 3330 Sep 2025 – 17 Aug 2026
- ConstructionNorth East Road, 4430 Sep 2025 – 17 Aug 2026
- ConstructionNorth East Road, 4530 Sep 2025 – 17 Aug 2026
- ConstructionNorth East Road, Ballans Rd30 Sep 2025 – 17 Aug 2026
Data sources & freshness
- Traffic SA road events — Department for Infrastructure and Transport (SA) · current · Updated
Heritage
2 heritage places
- Breakneck cuttingNorth East Road [298,210E 6,144,740N] MILLBROOKLocal heritage
- Hoads BridgeGorge Road 300,420.5E, 6,142,518.4N CUDLEE CREEKLocal heritage
Data sources & freshness
- SA Heritage Places database — Department for Environment and Water (SA) · current · Updated
Hazards
- Bushfire planning zone
- Overlay applies
Bushfire overlay checked at suburb centroid against all current SA Planning risk layers (high, medium, general, urban interface, regional, outback). Safer places from CFS designated locations.
Contributes to desirability score · Safety (18%)
Bushfire hazard overlays
Data sources & freshness
- Bushfire & hazard overlays (SA) — Government of South Australia · current · Updated
Politics & representation
- Federal electorate
- Mayo
- Member of Parliament
- Rebekha SHARKIE (Centre Alliance)
- Results from
- 2025 federal election
- Electorate enrolment (2025)
- 137,818
- Turnout (2025)
- 94.2%
- Swing since 2022 (2025)
- +3.4 pp toward Labor
Two-party preferred (2025)
Coalition 45.0%Labor 55.0%
Estimated suburb voting profile
Estimated from 8 nearby ordinary polling places (up to 13.3 km away).
Coalition 52.3%Labor 47.7%
7.3 percentage points more Coalition-leaning than the electorate
Estimated swing since 2022: +0.3 pp toward Labor
Nearest polling places
- Cudlee CreekLabor 47.7% · Coalition 52.3% TPP (2025)1.9 km away
- HoughtonLabor 44.8% · Coalition 55.2% TPP (2025)4.4 km away
- KersbrookLabor 49.2% · Coalition 50.8% TPP (2025)5.9 km away
- GumerachaLabor 53.5% · Coalition 46.5% TPP (2025)6.5 km away
- ForrestonLabor 46.9% · Coalition 53.1% TPP (2025)8.7 km away
Federal electorate from AEC federal division boundaries (2025 redistribution). Division-level results are official AEC figures from the latest general election, with by-election updates where applicable. The estimated suburb profile blends up to eight nearest ordinary polling booths in the same electorate using inverse-distance weighting from the suburb centroid — an approximation, not official AEC data. Nearest polling places are shown for reference.
Data sources & freshness
- Federal election results — Australian Electoral Commission · Updated · 2025 election with by-election overlays
Socio-economic
- IRSAD decile (2021)
- 9/10
- IRSD decile (2021)
- 9/10
ABS Socio-Economic Indexes for Areas (SEIFA), 2021 release — the latest available, derived from the 2021 Census. Deciles rank suburbs nationally from 1 (lowest) to 10 (highest).
What do IRSAD and IRSD measure?
IRSAD — Index of Relative Socio-economic Advantage and Disadvantage. Combines indicators of advantage (e.g. high income, skilled occupations) and disadvantage. Higher decile = more advantaged relative to other Australian areas.
IRSD — Index of Relative Socio-economic Disadvantage. Focuses on disadvantage only (e.g. low income, unemployment, limited education). Higher decile = less disadvantage nationally.
A new SEIFA edition typically follows each census; the ABS has not announced a release date beyond 2021.
Contributes to desirability score · Community (5%)
Socio-economic advantage (IRSAD decile)
Data sources & freshness
- SEIFA 2021 (IRSAD / IRSD) — Australian Bureau of Statistics · Updated
More in Adelaide Hills Council
Other suburbs in the same local government area.
Comparable suburbs
Similar population and socio-economic profile in other parts of South Australia.