Seventeen Mile Rocks - Sinnamon Park is well-off — but barely growing
Seventeen Mile Rocks - Sinnamon Park 4073 · Centenary, Greater Brisbane, QLD
Seventeen Mile Rocks - Sinnamon Park is among the more advantaged parts of Australia (SEIFA decile 9 of 10); a higher-earning area (median household income $2,517 a week). The trade-offs: the population is barely moving — in fact it is shrinking.
Mostly free-standing houses, with a median age of 43 and households on a median $2,517 a week at the 2021 Census.
Compiled from ABS regional population (SA2), the 2021 Census, SEIFA 2021, OpenStreetMap and Queensland Open Data · figures current to August 2026.
How the population has changed
Seventeen Mile Rocks - Sinnamon Park against the Queensland average, both set to 100 in the first year shown so the growth rates compare.
Seventeen Mile Rocks - Sinnamon Park population grew from 10,022 in 2016 to 9,886 in 2025, a change of -1.4% over the period, against the Queensland average.
Show the data table
| Year | Seventeen Mile Rocks - Sinnamon Park | Queensland average |
|---|---|---|
| 2016 | 10,022 | 4,845,152 |
| 2017 | 9,980 | 4,926,380 |
| 2018 | 9,965 | 5,006,623 |
| 2019 | 9,944 | 5,088,847 |
| 2020 | 9,934 | 5,165,613 |
| 2021 | 9,833 | 5,215,814 |
| 2022 | 9,795 | 5,310,905 |
| 2023 | 9,877 | 5,450,235 |
| 2024 | 9,908 | 5,571,890 |
| 2025 | 9,886 | 5,669,764 |
Where the growth is coming from
Seventeen Mile Rocks - Sinnamon Park gained 672 residents from internal migration and 126 from overseas in the year to June 2025, while 752 people moved away — a net addition of 46 before natural increase.
- Internal migration in+672
- Internal migration out+687
- Overseas migration in+126
- Natural increase-68Natural decrease — deaths exceeded births.
Components of population change over the sample year. Natural increase is shown apart from migration so the two are not read as one figure.
How it has changed
Census · five-yearlyThe 2016 Census against 2021. Older figures are mapped onto today's boundaries via the ABS Time Series Profile, so comparisons are approximate where borders moved.
| Measure | 2016 | 2021 | Change |
|---|---|---|---|
| Population | 9,557 | 9,716 | +1.7% |
| Median age | 39 | 43 | +4 yrs |
| Median household income | $2,237/wk | $2,517/wk | +13% |
| Median weekly rent | $435/wk | $460/wk | +5.7% |
| Born overseas | 34.0% | 35.3% | +1.3 pts |
Who lives here
Census · five-yearlyFrom the 2021 Census. Each figure carries its definition, so you know what is being counted.
People
Income
Housing
Work
How homes are held
- Owned outright 36.1%
- Mortgaged 43.5%
- Rented 17.1%
- Other / not stated 3.2%
How well-off the area is
Census · five-yearlyThe ABS SEIFA indexes rank every area by relative advantage and disadvantage. Decile 1 is the lowest tenth of Australia; decile 10 is the highest.
- Relative disadvantage (IRSD)Lower decile means more relative disadvantageDecile 10score 1,091
- Advantage & disadvantage (IRSAD)Higher decile means more relative advantageDecile 9score 1,103
- Economic resources (IER)Income and housing capacityDecile 10score 1,096
- Education & occupation (IEO)Education and occupational skill levelsDecile 9score 1,110
Getting around, and what's nearby
OpenStreetMap · quarterlyWhat OpenStreetMap records inside the suburb boundary. Counts reflect what is tagged in OSM and can undercount a real but less-mapped area.
Within the Seventeen Mile Rocks - Sinnamon Park SA2, OpenStreetMap records 2 childcare and kindergarten centres, 1 GP or clinic location, 1 supermarket and 25 parks. For families: 14 playgrounds. Eating out and socialising: 3 cafés, 3 restaurants and 1 pub or bar. Staying active: 1 gym, 3 public pools and 6 sports fields. Also 1 cinema. The nearest train station, Darra station, is about 2,250 m from the suburb centre. OpenStreetMap also maps 49 bus stops here.
List every mapped place
Childcare & kindergartens
- Genius Childcare Sinnamon Park
Gyms & fitness
- F45
Public pools
- Play Boat
- Stream Play
Cinemas
- Reading Cinemas
GPs & clinics
- Medical Center
Supermarkets
- Coles
Parks
- Drummond Street Park
- Rosemount Park
- Oldfield Road Park
- Edenbrooke Park
- Portadown Park
- Avondale Park
- Fremont Street Park
- Delapine Place Park
Schools
Every open Queensland school whose campus sits inside the SA2 boundary, with the average ICSEA across them. Open a school for its own ICSEA, student background and a link to My School.
The centre of this SA2 is zoned for Jindalee State School (primary), Centenary State High School (junior secondary), Centenary State High School (senior secondary).
Parts of the SA2 also fall in the catchment of Jamboree Heights State School (primary), Corinda State School (primary), Darra State School (primary), Corinda State High School (junior secondary), Corinda State High School (senior secondary).
Catchments can divide a suburb — confirm your address on EdMap.
School list & catchments: Queensland Government Open Data (Department of Education), licensed CC BY 4.0. ICSEA: ACARA School Profile. NAPLAN: myschool.edu.au (ACARA).
Nearby, in Centenary
Others in the same ABS district, by population growth. If this one doesn't fit, one of these might.
- HereSeventeen Mile Rocks - Sinnamon Park-0.2%
- 01Middle Park - Jamboree Heights+0.9%
- 02Jindalee - Mount Ommaney+0.8%
- 03Riverhills+0.2%
- 04Westlake-0.3%
Dots place each suburb's growth on the same scale, slowest at left.
Weighing up another suburb?
Type a name, then pick from the list. Every suburb is compared to the Queensland average.