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Victoria · Postcode 3377
Mount Lonarch postcode and suburb data
Victoria · Phone area code 03 · 152 km from Melbourne
Suburb snapshot
Mount Lonarch 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 Mount Lonarch ranks: household income sits in the bottom 25% of VIC suburbs.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Mount Lonarch vs the VIC average and the national average, using population-weighted 2021 Census data.
| Metric | Mount Lonarch | VIC avg | AU avg |
|---|---|---|---|
| Household income/wk | $1,062 -VIC | $1,817 | $1,836 |
| Mortgage/month | $1,733 -VIC | $1,933 | $1,958 |
| Median age | 50 | 46.0 | 45.0 |
| SEIFA decile | 3/10 -VIC | 6.0/10 | 6.0/10 |
| Unemployment | 0.0% -VIC | 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.
Mount Lonarch is a locality 152 km from Melbourne in Victoria, classified as outer regional by the ABS. The postcode is 3377. It falls within the North West region. The local government area is Pyrenees.
According to the 2021 Census, Mount Lonarch has a population of 44 with a median age of 50. The median weekly household income is $1,062, below the VIC average.
Housing in Mount Lonarch includes a median monthly mortgage repayment of $1,733, 17 total dwellings. Housing costs in the area sit below the VIC average. Owner-occupied dwellings (owned or mortgaged) make up 100.0% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Mount Lonarch scores in decile 3 out of 10, which is below the national average.
Mount Lonarch is part of the Grampians statistical area in Victoria.
Mount Lonarch details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 3377 |
| State | Victoria (VIC) |
| Phone Area Code | 03 |
| Population (2021) | 44 |
| Median Age | 50 years |
| Median Household Income (Census 2021) | $1,062/week |
| Median Personal Income (Census 2021) | $450/week |
| Median Monthly Mortgage (Census 2021) | $1,733 |
| Average Household Size | 2.3 persons |
| Area | 70.0 km² |
| Population Density | 1/km² |
| Total Dwellings | 17 |
| Australian Citizens | 95.5% |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 3/10 (below average) |
| Latitude | -37.2709 |
| Longitude | 143.378 |
| Distance from Melbourne | 152 km |
| Region (SA4) | North West |
| Area (SA3) | Grampians |
| Local Government | Pyrenees |
| Federal Electorate | Wannon |
| State Electorate | Ripon (Western Victoria) |
| Time Zone | AEST (UTC+10), Australia/Melbourne (standard time) |
Age Profile
Show counts
| 0–14 years | 3 (6.8%) |
| 15–24 years | 0 (0.0%) |
| 25–44 years | 7 (15.9%) |
| 45–64 years | 17 (38.6%) |
| 65+ years | 14 (31.8%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Diabetes | 9 (20.5%) |
| Arthritis | 5 (11.4%) |
| Asthma | 3 (6.8%) |
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 | 3 (12.0%) |
| 2 vehicles | 10 (40.0%) |
| 3+ vehicles | 12 (48.0%) |
Suburbs Near Mount Lonarch
Same Postcode (3377)
More Mount Lonarch 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.