Victoria · Postcode 3057
Sumner postcode and suburb data
Victoria · Phone area code 03 · 5 km from Melbourne
Suburb snapshot
Sumner at a glance vs VIC
Fast facts and benchmark bars show the suburb's key postcode, Census, SEIFA, school and LGA signals in context.
Quick facts
Benchmarks against VIC
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
Where Sumner ranks: household income is in the top 10% of VIC suburbs; rents are among the top 10% in VIC; SEIFA decile 9 puts it in the top 20% of Australia for socio-economic advantage.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Sumner vs the VIC average and the national average, using population-weighted 2021 Census data.
| Metric | Sumner | VIC avg | AU avg | Greater Melbourne |
|---|---|---|---|---|
| Household income/wk | $2,266 +VIC | $1,817 | $1,836 | $1,943 |
| Rent/wk | $445 +VIC | $375 | $390 | $404 |
| Mortgage/month | $1,800 ≈VIC | $1,933 | $1,958 | $2,100 |
| Median age | 32 | 46.0 | 45.0 | 39.0 |
| SEIFA decile | 9/10 +VIC | 6.0/10 | 6.0/10 | 9.0/10 |
| Unemployment | 4.5% ≈VIC | 5.0% | 5.0% | 5.0% |
Green pill = at least 10% above the VIC average; red = at least 10% below; grey = within 10%. For unemployment, colour polarity is inverted: lower is better.
Postcode 3057 covers Sumner, an inland suburb of Melbourne about 5 km from the city centre. It forms part of the Melbourne - Inner region of Victoria. Local government services are provided by Brisbane.
According to the 2021 Census, Sumner has a population of 603 with a median age of 32. The median weekly household income is $2,266, above the VIC average. The unemployment rate is 4.5%. The Indigenous population is 8 (1.3% of residents).
Housing in Sumner includes a median weekly rent of $445, median monthly mortgage repayment of $1,800, with 197 total dwellings. These housing costs sit above the VIC average. Owner-occupied dwellings (owned or mortgaged) make up 69.9% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Sumner scores in decile 9 out of 10, which is well above the national average.
Sumner is part of the Brunswick - Coburg statistical area in Victoria.
Sumner details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 3057 |
| State | Victoria (VIC) |
| Phone Area Code | 03 |
| Population (2021) | 603 |
| Median Age | 32 years |
| Median Household Income (Census 2021) | $2,266/week |
| Median Personal Income (Census 2021) | $1,002/week |
| Median Weekly Rent (Census 2021) | $445 |
| Median Monthly Mortgage (Census 2021) | $1,800 |
| Average Household Size | 2.9 persons |
| Area | 1.9 km² |
| Population Density | 318/km² |
| Total Dwellings | 197 |
| Australian Citizens | 83.3% |
| Indigenous Population | 8 (1.3%) |
| Unemployment Rate | 4.5% |
| SEIFA IRSAD Decile | 9/10 (well above average) |
| Latitude | -37.7722 |
| Longitude | 144.98 |
| Distance from Melbourne | 5 km |
| Region (SA4) | Melbourne - Inner |
| Area (SA3) | Brunswick - Coburg |
| Local Government | Brisbane |
| Federal Electorate | Wills |
| State Electorate | Brunswick (Northern Metropolitan) |
| Time Zone | AEST (UTC+10), Australia/Melbourne (standard time) |
Age Profile
Show counts
| 0–14 years | 155 (25.7%) |
| 15–24 years | 59 (9.8%) |
| 25–44 years | 239 (39.6%) |
| 45–64 years | 104 (17.2%) |
| 65+ years | 41 (6.8%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Asthma | 48 (8.0%) |
| Arthritis | 33 (5.5%) |
| Diabetes | 24 (4.0%) |
| Heart Disease | 18 (3.0%) |
| Lung Condition | 8 (1.3%) |
| Cancer | 5 (0.8%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 0 (0.0%) |
| 1 vehicle | 58 (29.4%) |
| 2 vehicles | 105 (53.3%) |
| 3+ vehicles | 34 (17.3%) |
Suburbs Near Sumner
Same Postcode (3057)
More Sumner 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.