Mount Barker
Growth defines Mount Barker: a 48.2% population lift over 10 years and a forecast 2.88% annual rise make it one of the Adelaide Hills' faster expanding centres. It remains strongly detached, with 91.3% separate houses and only 0.5% apartments, more house-oriented than inner Adelaide areas. Compared with Hahndorf or Nairne, Mount Barker plays the regional service-centre role, because schools, healthcare jobs and new land releases concentrate around a larger 18,330-person base.
Population
18,330
Median Age
36.0
Household IncomeiMedian weekly household income (ABS Census)
$1,624/wk
DAs (12 months)iDevelopment Applications lodged in the past year
401
Homebuyers get a family-house market rather than a compact unit market: 91.3% of dwellings are separate houses, while 36.6% have 4 or more bedrooms and 51.2% have 3. Mortgage pressure sits below stress levels, with typical repayments of $1,603 a month and mortgage costs at 22.8% of income. That matters because 44.7% of homes are mortgaged, so the suburb suits buyers wanting space but still watching repayments more closely than in lower-debt, older towns.
For Buyers
Homebuyers get a family-house market rather than a compact unit market: 91.3% of dwellings are separate houses, while 36.6% have 4 or more bedrooms and 51.2% have 3. Mortgage pressure sits below stress levels, with typical repayments of $1,603 a month and mortgage costs at 22.8% of income. That matters because 44.7% of homes are mortgaged, so the suburb suits buyers wanting space but still watching repayments more closely than in lower-debt, older towns.
For Investors
Investors should see Mount Barker as a growth and supply story, not a scarcity-only rental market. Renters make up 30.8% of households and the median rent is $350 a week, but vacancy is 6.4%, higher than tight inner-suburban markets. The 316 development applications over 12 months and large land-division activity add competition, while forecast internal migration of 780 people a year supports demand because new residents keep arriving from within Australia.
Development Activity
Total DAs
3,040
Last 12 Months
401
YoY ChangeiYear-over-year change in DA lodgements
-13.6%
Avg DA CostiAverage estimated cost per DA in the past year
N/A
Monthly DA Lodgements
DA Categories
Schools in Mount Barker iICSEA: school advantage index. 1000 = national avg, higher = more advantaged
Cornerstone College
7-12 · 754 students
Mount Barker Waldorf School
R-12 · 321 students
St Mark's Lutheran School
R-6 · 351 students
St Francis de Sales College
R-12 · 1047 students
Mount Barker Primary School
U, R-6 · 326 students
Demographics
Mount Barker is slightly younger than the national profile, with a median age of 36, which is 4.0 years below the national benchmark. Overseas-born residents are 17.5%, 4.1 percentage points below the national share, and university attainment is 30.1%, about level with the national rate. English ancestry is prominent at 8,604 people, followed by German at 2,151, giving the suburb a more Anglo-European mix than many metropolitan growth corridors.
Age Distribution
Bedrooms
Dwelling Structure
91.3%
Houses
7.8%
Townhouse
0.5%
Apartment
Tenure
Housing is dominated by ownership and detached stock: 24.5% own outright, 44.7% have a mortgage and 30.8% rent. The separate-house share of 91.3% is far above apartment-style areas, with apartments only 0.5% and semi-detached homes 7.8%. Affordability pressure is moderated by costs, because rent is 21.6% of income and mortgages are 22.8%, both below common stress thresholds, although heavy land release means buyers should compare new estates with established pockets near the town centre.
Mortgage / mo
$1,603
Rent / wk
$350
HH Size
2.5
Personal Income / wk
$815
Vacancy Ratei% of dwellings unoccupied on Census night (ABS 2021)
6.4%
Unoccupied
481
Rent / IncomeiMedian rent as % of household income. Over 30% = housing stress
21.6%
Mortgage / IncomeiMedian mortgage as % of household income. Over 30% = housing stress
22.8%
Community Profile
Languages Spoken at Home
Ancestry
Household Composition
26.8%
Couples, no children
14,669
Total families
Economy & Employment
Mount Barker's economy leans toward population-serving work, which fits its regional centre role. Healthcare employs 1,286 people, or 20.3%, above most single-industry shares, followed by education at 782 and 12.3%, public administration at 568 and construction at 524. Professionals are the largest occupation group at 1,900, while unemployment is 3.9% and participation is 61.7%. SEIFA is middle-to-upper, with IEO decile 6, IER decile 7, IRSD decile 6 and IRSAD decile 6.
Unemployment
4.0%
Labour Force
14,935
Unemployed
591
Quarterly Trend
Source: SALM Dec-25
Socio-Economic Indexes (SEIFA)iABS index ranking suburbs from 1 (most disadvantaged) to 10 (most advantaged)
Full-time
61.6%
Part-time
34.5%
Participation
61.7%
Employed
8,711
Occupations
Top Industries
University
30.1%
Postgraduate
5.8%
Born Overseas
17.5%
Dwellings
7,021
Transport to Work
Livability is anchored by schools, car access and a regional service base. There are 7 local schools with ICSEA values from 1010 to 1094; Cornerstone College leads at 1094 with 754 students, followed by Mount Barker Waldorf School at 1087 and St Mark's Lutheran School at 1071, giving Independent, Catholic and Government options. Car dependence is higher than transit-based suburbs, with 87.6% driving to work and only 3.9% using public transport. Crime is 36.0 incidents per 1,000, while IRSAD decile 6 points to average-to-above-average advantage.
Drive
87.6%
Public Transport
3.9%
Walk / Cycle
2.9%
Work from Home
N/A
Population Forecast
+2.88%/yr
(+775 people/yr)
EstablishedMount Barker is forecast to keep expanding, with trend growth of 2.88% a year, equal to about 775 additional people annually. The medium scenario lifts population from 26,656 in 2026 to 30,532 in 2031, higher than the current 18,330 base used for the suburb profile. Migration is led by internal moves, averaging 780 net people a year compared with 163 from overseas, because families and downsizers are relocating within Australia. Gentrification is scored 40 and labelled Active, while the shift profile is Aging.
Historical + Forecast
Hamilton-Perry + Holt smoothing on ERP 2001-2025
Age Cohort Forecast
Primary Driver
Internal Migration
Net Overseas / yr
+163
Net Internal / yr
+780
Gentrification Signal
Active
Net internal migration +780/yr, Accelerating: 16% → 53%
Safety & Crime
Total Offences
659
Year ending June 2024
Rate per 1,000 People
36.0
Source: Crime Statistics Agency Victoria / SA Police
National Ranking iPercentile rank among ~15,000 AU suburbs. 90% = higher than 90% of suburbs
How Mount Barker compares to ~15,000 Australian suburbs
Frequently Asked Questions
Is Mount Barker a good suburb to live in?
Yes for households wanting space, schools and regional services: 91.3% of dwellings are separate houses, there are 7 local schools, and crime is 36.0 incidents per 1,000 residents.
What is the median house price in Mount Barker?
A current median house price is not available for Mount Barker. Buyers can still assess the market through housing structure: 91.3% separate houses, 44.7% mortgaged homes and typical mortgage repayments of $1,603 a month.
What schools are in Mount Barker?
Mount Barker has 7 schools spanning Government, Catholic and Independent sectors. ICSEA values range from 1010 to 1094, with Cornerstone College, Mount Barker Waldorf School and St Mark's Lutheran School among the highest-rated locally.
Is Mount Barker safe?
Mount Barker records 659 offences, equal to 36.0 incidents per 1,000 residents. That gives buyers a concrete safety benchmark to compare with nearby Adelaide Hills and metropolitan suburbs.
Is Mount Barker good for property investment?
It has growth appeal, with 2.88% forecast annual population growth and 780 net internal migrants a year. Investors should also note the 6.4% vacancy rate and 316 development applications, which mean new supply can affect rents.
How is Mount Barker's population changing?
Mount Barker is growing quickly. Population rose 48.2% over 10 years, and the medium forecast reaches 30,532 by 2031, supported mainly by internal migration rather than overseas migration.
What is the development pipeline like in Mount Barker?
Development activity is high, with 316 applications in 12 months and a major land division proposal involving 988 residential allotments. That supports growth but can lift competition among new houses.
How to read these comparisons
Phrases like "above the national average" reference the unweighted median across Australian suburbs with more than 1,000 residents, not population-weighted national figures. Suburb-level medians are more useful for ranking suburbs against each other; ABS census headlines are population-weighted (so dominated by Sydney and Melbourne) and can read very differently.
Current baseline (refreshed 2026-05-10): median age 40, university-educated 30.1%, born overseas 21.6%, average household size 2.5 people.
Data sources: ABS 2021 Census (demographics, income, tenure), state Valuer-General (house prices), Department of Jobs SALM (unemployment), ACARA (school ICSEA), state Crime Statistics agencies (offences), council DA portals (development applications). Population forecasts use a Hamilton-Perry cohort model calibrated to ABS ERP.
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