Queensland · Postcode 4305

Leichhardt postcode and suburb data

Queensland · Phone area code 07 · 33 km from Brisbane

Inner Regional Bottom 20% SEIFA
4,471
Population (2021)
$1,109
Household income/wk
$280
Median rent/wk
31
Median age
1/10
SEIFA advantage

Suburb snapshot

Leichhardt 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

4305 Postcode See every suburb sharing this postcode
4,471 People Resident population, Census 2021
Ipswich Council area 83 suburbs, 12 postcodes
31 Median age Years, Census 2021
$1,109/wk Household income Suburb median, Census 2021 dollars
Decile 1/10 SEIFA advantage Very low SEIFA advantage
2 Schools ACARA 2025 profiles in this suburb

Benchmarks against QLD

Household income
$1,109/wk
37% below QLD average
Suburb median, Census 2021
Weekly rent
$280/wk
26% below QLD average
Suburb median, Census 2021
SEIFA advantage
1/10
3.0 deciles below QLD average
IRSAD decile, higher means more advantage
Median age
31 years
13.0 years younger than QLD average
Resident median age
Unemployment
14.3%
8.3 pts above QLD average
Census labour-force rate

Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.

Where Leichhardt ranks: household income sits in the bottom 25% of QLD suburbs; SEIFA decile 1 places it in the bottom 20% of Australia for socio-economic advantage.

ABS Census 2021 · SEIFA 2021

Detailed comparison table

Leichhardt vs the QLD average and the national average, using population-weighted 2021 Census data.

MetricLeichhardtQLD avgAU avgGreater Brisbane
Household income/wk $1,109 -QLD $1,770 $1,836 $1,945
Rent/wk $280 -QLD $380 $390 $402
Mortgage/month $1,200 -QLD $1,774 $1,958 $1,919
Median age 31 44.0 45.0 38.0
SEIFA decile 1/10 -QLD 4.0/10 6.0/10 7.0/10
Unemployment 14.3% +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.

Leichhardt is a locality 33 km from Brisbane in Queensland, classified as inner regional by the ABS. The postcode is 4305. It falls within the Ipswich region. The local government area is Ipswich.

According to the 2021 Census, Leichhardt has a population of 4,471 with a median age of 31. The median weekly household income is $1,109, below the QLD average. The unemployment rate is 14.3%, higher than the QLD average. The Indigenous population is 561 (12.5% of residents).

Housing in Leichhardt includes a median weekly rent of $280, median monthly mortgage repayment of $1,200, with 1,647 total dwellings. Housing costs in the area sit below the QLD average. Rental properties account for 65.2% of dwellings.

On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Leichhardt scores in decile 1 out of 10, which is well below the national average.

Schools in Leichhardt include Leichhardt State School and Immaculate Heart School.

Leichhardt is part of the Ipswich Inner statistical area in Queensland.

Leichhardt details

Location, Census, housing, SEIFA and geography fields used across this profile.

Postcode4305
StateQueensland (QLD)
Phone Area Code07
Population (2021)4,471
Median Age31 years
Median Household Income (Census 2021)$1,109/week
Median Personal Income (Census 2021)$580/week
Median Weekly Rent (Census 2021)$280
Median Monthly Mortgage (Census 2021)$1,200
Average Household Size2.5 persons
Area2.8 km²
Population Density1596/km²
Total Dwellings1,647
Australian Citizens88.4%
Indigenous Population561 (12.5%)
Unemployment Rate14.3%
SEIFA IRSAD Decile1/10 (well below average)
Latitude-27.616667
Longitude152.733333
Distance from Brisbane33 km
Region (SA4)Ipswich
Area (SA3)Ipswich Inner
Local GovernmentIpswich
Federal ElectorateBlair
State ElectorateScenic Rim
Time ZoneAEST (UTC+10), Australia/Brisbane (standard time)

Age Profile

0–14 (24.5%) 15–24 (14.9%) 25–44 (28.0%) 45–64 (21.4%) 65+ (11.1%)
Show counts
0–14 years1,096 (24.5%)
15–24 years664 (14.9%)
25–44 years1,253 (28.0%)
45–64 years959 (21.4%)
65+ years497 (11.1%)

Housing Tenure

Owned outright (13.7%) Mortgaged (21.1%) Rented (65.2%)

SEIFA socio-economic index

Leichhardt is in SEIFA IRSAD decile 1 of 10. Higher deciles indicate more relative socio-economic advantage. This is an area-level index, not a score for individual households.
More disadvantagedMiddle rangeMore advantaged

Health Conditions (2021 Census)

Asthma723 (16.2%)
Arthritis536 (12.0%)
Diabetes336 (7.5%)
Heart Disease218 (4.9%)
Lung Condition172 (3.8%)
Cancer117 (2.6%)
Dementia22 (0.5%)

Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.

Motor Vehicles per Dwelling

No vehicle159 (9.8%)
1 vehicle730 (45.2%)
2 vehicles523 (32.4%)
3+ vehicles203 (12.6%)

Schools in Leichhardt

ACARA 2025 school profiles for schools located in Leichhardt. ICSEA is shown where ACARA publishes it.

Leichhardt State School
Primary · Gov · ICSEA 862 · 304 students
Immaculate Heart School
Primary · Cat · ICSEA 1002 · 248 students

Suburbs Near Leichhardt

Same Postcode (4305)

More Leichhardt 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.