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Queensland · Postcode 4306
Karana Downs postcode and suburb data
Queensland · Phone area code 07 · 22 km from Brisbane
Suburb snapshot
Karana Downs at a glance vs QLD
Fast facts and benchmark bars show the suburb's key postcode, Census, SEIFA, school and LGA signals in context.
Quick facts
Benchmarks against QLD
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
Where Karana Downs ranks: household income is in the top 25% of QLD suburbs; SEIFA decile 9 puts it in the top 20% of Australia for socio-economic advantage.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Karana Downs vs the QLD average and the national average, using population-weighted 2021 Census data.
| Metric | Karana Downs | QLD avg | AU avg | Greater Brisbane |
|---|---|---|---|---|
| Household income/wk | $2,255 +QLD | $1,770 | $1,836 | $1,945 |
| Rent/wk | $400 ≈QLD | $380 | $390 | $402 |
| Mortgage/month | $1,800 ≈QLD | $1,774 | $1,958 | $1,919 |
| Median age | 41 | 44.0 | 45.0 | 38.0 |
| SEIFA decile | 9/10 +QLD | 4.0/10 | 6.0/10 | 7.0/10 |
| Unemployment | 3.8% -QLD | 6.0% | 5.0% | 6.0% |
Green pill = at least 10% above the QLD average; red = at least 10% below; grey = within 10%. For unemployment, colour polarity is inverted: lower is better.
Karana Downs is a locality 22 km from Brisbane in Queensland, classified as inner regional by the ABS. The postcode is 4306. It falls within the Ipswich region. The local government area is Brisbane.
According to the 2021 Census, Karana Downs has a population of 3,800 with a median age of 41. The median weekly household income is $2,255, above the QLD average. The unemployment rate is 3.8%, lower than the QLD average. The Indigenous population is 107 (2.8% of residents).
Housing in Karana Downs includes a median weekly rent of $400, median monthly mortgage repayment of $1,800, with 1,333 total dwellings. Owner-occupied dwellings (owned or mortgaged) make up 88.2% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Karana Downs scores in decile 9 out of 10, which is well above the national average.
Karana Downs is served by Mount Crosby State School.
Karana Downs is part of the Ipswich Inner statistical area in Queensland.
Karana Downs details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 4306 |
| State | Queensland (QLD) |
| Phone Area Code | 07 |
| Population (2021) | 3,800 |
| Median Age | 41 years |
| Median Household Income (Census 2021) | $2,255/week |
| Median Personal Income (Census 2021) | $948/week |
| Median Weekly Rent (Census 2021) | $400 |
| Median Monthly Mortgage (Census 2021) | $1,800 |
| Average Household Size | 2.8 persons |
| Area | 7.5 km² |
| Population Density | 507/km² |
| Total Dwellings | 1,333 |
| Australian Citizens | 90.4% |
| Indigenous Population | 107 (2.8%) |
| Unemployment Rate | 3.8% |
| SEIFA IRSAD Decile | 9/10 (well above average) |
| Latitude | -27.55 |
| Longitude | 152.822222 |
| Distance from Brisbane | 22 km |
| Region (SA4) | Ipswich |
| Area (SA3) | Ipswich Inner |
| Local Government | Brisbane |
| Federal Electorate | Blair |
| State Electorate | Scenic Rim |
| Time Zone | AEST (UTC+10), Australia/Brisbane (standard time) |
Age Profile
Show counts
| 0–14 years | 742 (19.5%) |
| 15–24 years | 437 (11.5%) |
| 25–44 years | 932 (24.5%) |
| 45–64 years | 1,122 (29.5%) |
| 65+ years | 553 (14.6%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Asthma | 359 (9.4%) |
| Arthritis | 307 (8.1%) |
| Heart Disease | 149 (3.9%) |
| Diabetes | 142 (3.7%) |
| Cancer | 141 (3.7%) |
| Lung Condition | 62 (1.6%) |
| Dementia | 14 (0.4%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 10 (0.8%) |
| 1 vehicle | 277 (21.0%) |
| 2 vehicles | 627 (47.6%) |
| 3+ vehicles | 402 (30.5%) |
Schools in Karana Downs
ACARA 2025 school profiles for schools located in Karana Downs. ICSEA is shown where ACARA publishes it.
Suburbs Near Karana Downs
Same Postcode (4306)
More Karana Downs Data
Page last reviewed . Data sources: Australian Bureau of Statistics 2021 Census (CC BY 4.0), SEIFA 2021 IRSAD, ACARA school profiles 2025. How this data is sourced.