Suburb profile · ABS Census 2021
Grand Secret suburb profile
Grand Secret, QLD · Postcode 4820
This Grand Secret suburb profile summarises official Australian Bureau of Statistics Census 2021 data for Grand Secret, QLD (postcode 4820). Use it as a free suburb report covering population, median rent, household income, age, housing tenure and employment, plus how those figures changed since Census 2016— then compare Grand Secret with nearby suburbs.
Grand Secret at a glance
Population
151
Median rent
$230/wk
Household income
$1,354/wk
Median age
49
Grand Secret trends (2016 → 2021)
Change since the previous Census. Historical figures are mapped from State Suburbs (SSC) to today's suburb boundaries.
Population
Census 2011 → 2016 → 2021
-19.3% over 10 years
Population
151
was 168 in 2016
-17 · -10.1%
Median rent
$230/wk
was $210/wk in 2016
+$20 · +9.5%
Household income
$1,354/wk
was $959/wk in 2016
+$395 · +41.2%
Median age
49
was 36 in 2016
+13 · +36.1%
Dig deeper: Grand Secret population growth · Grand Secret then and now
Grand Secret vs nearby & QLD
Median Census 2021 figures for Grand Secret, nearby suburbs (8), and the QLD state median (suburbs with 1,000+ people).
Rent
-37.8% vs area
- Grand Secret$230/wk
- Nearby$240/wk
- QLD$370/wk
Household income
-21.2% vs area
- Grand Secret$1,354/wk
- Nearby$1,436/wk
- QLD$1,719/wk
Median age
+25.6% vs area
- Grand Secret49
- Nearby40.5
- QLD39
Personal income
-20.6% vs area
- Grand Secret$628/wk
- Nearby$701/wk
- QLD$791/wk
Nearby uses the same postcode first, then larger suburbs in QLD.
Socio-economic profile
How Grand Secret compares to other Australian suburbs on income, education and occupation — from official ABS SEIFA 2021 data.
Grand Secret sits below average for socio-economic advantage compared with suburbs Australia-wide. It shows limited economic resources and lower education and occupation levels.
Relative disadvantage (IRSD)
Decile 2919.1
Lower score / decile = more relative disadvantage
Advantage & disadvantage (IRSAD)
Decile 2895.1
Higher score / decile = more relative advantage
Economic resources (IER)
Decile 2938.3
Access to economic resources (income, housing)
Education & occupation (IEO)
Decile 1857.6
Education and occupational skill levels
Source: ABS SEIFA 2021. See methodology.
Grand Secret on the map
OpenStreetMap outline for Grand Secret, QLD.
Map data © OpenStreetMap contributors. Boundary matching is approximate.
Grand Secret people
- Population
- 151
- Median age
- 49
- Born overseas
- 2.6%
- Average household size
- 2.2
Total usual residents (Census 2021)
Median age of residents in years
Percentage born outside Australia
Average number of people per household
Grand Secret income
- Median household income
- $1,354/wk
- Median personal income
- $628/wk
Median total weekly household income
Median total weekly personal income
Grand Secret housing
- Median rent
- $230/wk
- Median mortgage repayment
- $1,296/mo
- Separate houses
- 82.7%
- Flats & apartments
- 0%
- Owned outright
- 28%
- Mortgaged
- 25.3%
- Rented
- 37.3%
- Unoccupied dwellings
- 6.7%
Median weekly rent for rented dwellings
Median monthly mortgage repayment
Percentage of dwellings that are separate houses
Percentage of dwellings that are flats or apartments
Percentage of dwellings owned without a mortgage
Percentage of dwellings with a mortgage
Percentage of dwellings rented
Percentage of private dwellings unoccupied on Census night
Grand Secret work
- Employment to population
- 50%
- Unemployment rate
- 9%
- Year 12 or above
- 27%
Employed persons as a percentage of population aged 15+
Unemployed persons as a percentage of the labour force
Percentage with Year 12 or equivalent as highest school level
Nearby suburb profiles (near 4820)
Compare Grand Secret with nearby suburbs
Grand Secret in numbers
Grand Secret had 151 residents at the 2021 Census. The median age is 49, 23% above the typical QLD suburb. The average household has 2.2 people. 2.6% of residents were born overseas.
Among occupied homes, 28% own their home outright, 25.3% are paying a mortgage, 37.3% rent. Separate houses make up 82.7% of dwellings, with 0% in flats or apartments. Median rent was $230/wk, 34% below the typical QLD suburb.
Median household income was $1,354/wk, 20% below the typical QLD suburb. On the ABS SEIFA index of relative socio-economic disadvantage it sits in decile 2 nationally (1 is most disadvantaged, 10 least).
Between the 2016 and 2021 Censuses the population fell 10.1% (from 168 to 151). Median rent moved from $210/wk to $230/wk (+9.5%).
Grand Secret suburb FAQs
- What is the median rent in Grand Secret, QLD?
- The median weekly rent in Grand Secret was $230/wk at the 2021 Census (ABS).
- How many people live in Grand Secret, QLD?
- Grand Secret had 151 residents at the 2021 Census, down 10.1% from 2016.
- What is the median household income in Grand Secret?
- Median household income in Grand Secret was $1,354/wk at the 2021 Census.
- Do most people rent or own in Grand Secret?
- 37.3% of occupied homes in Grand Secret were rented, 28% were owned outright and 25.3% were owned with a mortgage.
About this Grand Secret suburb profile
Figures are from the ABS Census of Population and Housing 2021 (General Community Profile) for the Suburbs and Localities boundary matching Grand Secret. Where shown, 2016 values come from the 2016 State Suburbs (SSC) profile, linked via ABS geographic correspondence — boundaries are not always identical. Medians may be suppressed for very small areas. This is not financial or relocation advice — use it alongside current market data.
Source: ABS Census 2021. Methodology