Forest Lake
Delfin's 1990s experiment in master-planning, Forest Lake holds 22,676 residents on 9.82 sqkm of circular street loops radiating from a central lake. The household income median sits at $1,921 weekly, landing in the 71.9th percentile nationally, yet only 5% of residents catch public transport while 85.9% drive. The Vietnamese ancestry count (1,810) and Buddhist religious population (1,324) form a layer atop the Anglo-Celtic majority. Overseas-born share at 39.8% runs 18.2 percentage points above the national average, with separate houses making up 94.9% of the stock, well above any inner-Brisbane benchmark.
Population
22,676
Median Age
37.0
Household IncomeiMedian weekly household income (ABS Census)
$1,921/wk
DAs (12 months)iDevelopment Applications lodged in the past year
32
Median House
$483K
Estimated from rent (2025)
Forest Lake fits the four-bedroom-family-detached buyer better than almost any south-west Brisbane alternative, with 52.3% of homes carrying four-plus bedrooms and another 43.2% at three bedrooms. Median monthly mortgage repayments sit at $1,690, producing a 20.3% mortgage-to-income ratio which is well below the 30% mortgage-stress threshold and lower than tighter Brisbane mortgage belts. Separate houses dominate at 94.9% of dwellings, compared to a typical metro mix closer to 70%, so buyers chasing apartments or townhouses will find scarcity (apartments 1.6%, semi-detached 3.4%). The 25.4% outright-owned share signals a maturing 1990s estate where original buyers have paid down their loans, while 48% mortgaged households reflect ongoing turnover into family stock.
For Buyers
Forest Lake fits the four-bedroom-family-detached buyer better than almost any south-west Brisbane alternative, with 52.3% of homes carrying four-plus bedrooms and another 43.2% at three bedrooms. Median monthly mortgage repayments sit at $1,690, producing a 20.3% mortgage-to-income ratio which is well below the 30% mortgage-stress threshold and lower than tighter Brisbane mortgage belts. Separate houses dominate at 94.9% of dwellings, compared to a typical metro mix closer to 70%, so buyers chasing apartments or townhouses will find scarcity (apartments 1.6%, semi-detached 3.4%). The 25.4% outright-owned share signals a maturing 1990s estate where original buyers have paid down their loans, while 48% mortgaged households reflect ongoing turnover into family stock.
For Investors
Rental fundamentals are average for Brisbane's outer south-west. Renters make up 26.6% of households, which sits below the metro renter share, and the vacancy rate of 3.6% is at the loose end of healthy. Median weekly rent of $390 is modest, producing a rent-to-income ratio around 20.3%, so the tenant pool can absorb increases. Rent growth ran 8.6% across the recent shift period, lower than higher-gentrifying corridors but consistent with the established master-planned profile. Forecast population gain of 253 persons annually (1.05% trend) is overseas-migration driven (+344/yr) and offsets a net internal outflow of 210/yr. Development pipeline is thin at 25 applications in 12 months, mostly lot reconfigurations rather than apartment supply, so existing stock keeps scarcity value.
Development Activity
Total DAs
90
Last 12 Months
32
YoY ChangeiYear-over-year change in DA lodgements
+77.8%
Avg DA CostiAverage estimated cost per DA in the past year
N/A
Monthly DA Lodgements
DA Categories
Schools in Forest Lake iICSEA: school advantage index. 1000 = national avg, higher = more advantaged
St John's Anglican College
Prep-12 · 1329 students
Grand Avenue State School
Prep-6 · 917 students
Forest Lake State School
Prep-6 · 738 students
Forest Lake State High School
7-12 · 1673 students
Demographics
The demographic profile breaks the typical outer-Brisbane Anglo template. Overseas-born residents make up 39.8%, running 18.2 percentage points above the national average, and the Vietnamese ancestry block (1,810 people) is the fourth-largest origin after English, Other and Scottish. Mandarin (253), Samoan (222), Sinhalese (166), Punjabi (163) and Hindi (149) speakers form distinct community clusters, with the Samoan and Pacific Islander overlay being unusual versus other Brisbane master-planned peers. Median age of 37 sits 3 years below the national figure, and university-qualified residents at 37.5% run 7.4 percentage points above the national rate. Christianity dominates at 10,091 followers but Buddhism (1,324) and Hinduism (936) mark the migrant overlay clearly.
Age Distribution
Bedrooms
Dwelling Structure
94.9%
Houses
3.4%
Townhouse
1.6%
Apartment
Tenure
The housing stock is overwhelmingly detached and family-sized, with 94.9% separate houses and 95.5% combined three- and four-plus bedroom homes. Tenure splits 25.4% owned outright, 48% with a mortgage, and 26.6% renting, reflecting a mature 1990s subdivision rather than the higher-mortgage shares typical of newer growth corridors. Median weekly rent is $390 and median monthly mortgage is $1,690, with both stress ratios at 20.3%, below the 30% national benchmark for affordability strain. Apartment supply at 1.6% and semi-detached at 3.4% means downsizers and singles have very thin choices compared to inner Brisbane medians around 30% non-detached. Price data is not published for the precinct, but mortgage repayments and household income place the suburb in Brisbane's middle-mortgage band, not the inner ring.
Mortgage / mo
$1,690
Rent / wk
$390
HH Size
2.8
Personal Income / wk
$801
Vacancy Ratei% of dwellings unoccupied on Census night (ABS 2021)
3.6%
Unoccupied
288
Rent / IncomeiMedian rent as % of household income. Over 30% = housing stress
20.3%
Mortgage / IncomeiMedian mortgage as % of household income. Over 30% = housing stress
20.3%
Community Profile
Languages Spoken at Home
Ancestry
Household Composition
20.8%
Couples, no children
19,464
Total families
Economy & Employment
The local labour profile is steady rather than booming, with a 6.0% unemployment rate that runs above Brisbane's metro average and a participation rate of 61.2%. Healthcare leads at 20.0% of jobs (1,472 workers), followed by Education at 12.3%, Public Administration at 8.7%, Professional/Technical at 8.6% and Manufacturing at 7.8%, so the suburb leans on the broader Brisbane public-sector and care economy rather than any concentrated cluster. Professionals (2,516) and Clerical/Administrative workers (1,734) are the top two occupational groups, with Community/Personal services (1,434) reflecting the healthcare bias. SEIFA deciles read IRSAD 5, IRSD 5, IEO 6 and IER 6, placing the suburb in the middle of the national distribution despite household income at the 71.9th percentile, an anomaly driven by larger household size (2.8) lifting aggregate income.
Unemployment
2.6%
Labour Force
14,142
Unemployed
367
Quarterly Trend
Source: SALM Dec-25
Socio-Economic Indexes (SEIFA)iABS index ranking suburbs from 1 (most disadvantaged) to 10 (most advantaged)
Full-time
66.7%
Part-time
27.3%
Participation
61.2%
Employed
10,406
Occupations
Top Industries
University
37.5%
Postgraduate
10.0%
Born Overseas
39.8%
Dwellings
7,728
Transport to Work
Daily life is car-dependent and school-oriented. 85.9% of working residents drive while only 5.3% use public transport, lower than Brisbane's metro share and below most inner-ring suburbs, which is typical of master-planned cul-de-sac geometry. The school catalogue includes St John's Anglican College (Independent Combined, ICSEA 1118, 1,329 enrolments), well above the national 1000 benchmark and the strongest local academic option, plus Grand Avenue State School (ICSEA 1033, 917 students) and Forest Lake State School (ICSEA 1015, 738 students). Forest Lake State High School at ICSEA 969 sits 31 points below the national average. The central lake, parklands and Forest Lake Hyperdome anchor everyday amenity, and SEIFA IRSAD decile 5 reflects a mid-tier socio-economic mix rather than disadvantage.
Drive
85.9%
Public Transport
5.3%
Walk / Cycle
1.8%
Work from Home
N/A
Population Forecast
+1.05%/yr
(+253 people/yr)
EstablishedPopulation growth is modest and overseas-migration dependent. The Medium trend forecasts 24,476 in 2026 climbing to 25,740 by 2031, a 1.05% annual rate or 253 persons per year. Net internal migration runs at -210 annually (residents leaving for cheaper or newer Brisbane corridors) while overseas inflow of +344/yr keeps the headline positive. The Aging trajectory shows the senior share rising 4.8 percentage points while the young-adult share fell 3.6 points, so the suburb's 1990s wave of family-formation buyers is now ageing in place. Real income growth ran -6.8% across the period, weaker than higher-gentrifying corridors. Gentrification score of 15 is firmly in the Not Gentrifying band, consistent with affordability holding steady at 47.2% (improving from 49.9%) rather than compressing.
Historical + Forecast
Hamilton-Perry + Holt smoothing on ERP 2001-2025
Age Cohort Forecast
Primary Driver
Overseas Migration
Net Overseas / yr
+344
Net Internal / yr
-210
Gentrification Signal
Not gentrifying
Population +12% since 2011, Net internal outflow -210/yr, Strong overseas inflow +344/yr
National Ranking iPercentile rank among ~15,000 AU suburbs. 90% = higher than 90% of suburbs
How Forest Lake compares to ~15,000 Australian suburbs
Frequently Asked Questions
Is Forest Lake a good suburb to live in?
Forest Lake works well for families chasing a four-bedroom detached house in a master-planned setting, with 52.3% of stock at 4+ bedrooms and 94.9% separate houses. SEIFA IRSAD decile 5 places it mid-pack nationally, and the household income reaches the 71.9th percentile thanks to 2.8-person households. School quality varies, with ICSEA scores spanning 969 to 1118.
What is the median house price in Forest Lake?
Suburb-level house price data is not published reliably for Forest Lake, but the median monthly mortgage of $1,690 and median weekly rent of $390 place it in Brisbane's middle-mortgage band. The 20.3% mortgage-to-income ratio sits well below the 30% stress benchmark, indicating affordability remains workable for the 48% of households carrying a mortgage.
What schools are in Forest Lake?
Four schools serve the suburb. St John's Anglican College is an Independent Combined school with ICSEA 1118 and 1,329 enrolments, the strongest academic option. Grand Avenue State School (Primary, ICSEA 1033, 917 students) and Forest Lake State School (Primary, ICSEA 1015, 738 students) cover the government primary sector, while Forest Lake State High School handles 1,673 secondary students at ICSEA 969.
Is Forest Lake safe?
Suburb-level QPS crime statistics are not published in the brief data set, so a quantified safety rating is not available here. SEIFA IRSAD decile 5 indicates mid-tier socio-economic conditions nationally, which typically correlates with average rather than elevated crime patterns. Prospective residents should check the QPS Online Crime Map for current 12-month data on Forest Lake's 9.82 sqkm area.
Is Forest Lake good for property investment?
Yields are modest. Vacancy rate at 3.6% sits at the soft end of healthy, renter share is 26.6% which is below the metro average, and weekly rent of $390 produces lower gross yields than higher-density Brisbane suburbs. Population growth runs only 1.05% annually (253 persons/yr) and the Not Gentrifying score of 15 means capital growth catalysts are weak compared to corridors with stronger internal-migration inflows.
How is Forest Lake's population changing?
The suburb is aging in place. Population is forecast to grow from 24,476 in 2026 to 25,740 by 2031, a 1.05% annual rate driven by overseas migration of 344 persons/yr offsetting net internal outflow of 210/yr. The senior share has risen 4.8 percentage points while the young-adult share fell 3.6 points, consistent with the original 1990s Delfin family buyers progressing through life-stage.
What languages are spoken in Forest Lake?
39.8% of residents were born overseas, 18.2 percentage points above the national average. The top languages other than English include Mandarin (253 speakers), Samoan (222), Sinhalese (166), Punjabi (163) and Hindi (149). The Vietnamese ancestry block is the largest non-Anglo group at 1,810 people, and the Samoan Pacific Islander presence is distinctive versus other Brisbane master-planned suburbs.
How much development is happening in Forest Lake?
Development is modest. 25 planning applications were lodged in the past 12 months, mostly Reconfiguring a Lot subdivisions and Material Change of Use applications rather than large apartment projects. With 94.9% separate-house stock and only 1.6% apartments, the pipeline reinforces the established detached character rather than reshaping density.
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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