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Frankston South Postcode
Victoria
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
How Frankston South Compares
Frankston South vs the VIC average and the national average (2021 Census, population-weighted).
| Metric | Frankston South | VIC avg | AU avg | Greater Melbourne |
|---|---|---|---|---|
| Household income/wk | $2,038 +VIC | $1,817 | $1,836 | $1,943 |
| Rent/wk | $420 +VIC | $375 | $390 | $404 |
| Mortgage/month | $2,167 +VIC | $1,933 | $1,958 | $2,100 |
| Median age | 44 | 46.0 | 45.0 | 39.0 |
| SEIFA decile | 9/10 +VIC | 6.0/10 | 6.0/10 | 9.0/10 |
| Unemployment | 3.5% -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.
Frankston South is a coastal suburb of Melbourne in Victoria, with postcode 3199. It sits about 45 km from the Melbourne CBD, within the Frankston local government area. The suburb footprint covers roughly 14.6 square kilometres.
According to the 2021 Census, Frankston South has a population of 18,801 with a median age of 44. The median weekly household income is $2,038, above the VIC average. The unemployment rate is 3.5%, lower than the VIC average. The Indigenous population is 136 (0.7% of residents).
Housing in Frankston South includes a median weekly rent of $420, median monthly mortgage repayment of $2,167, with 6,820 total dwellings. These housing costs sit above the VIC average. Owner-occupied dwellings (owned or mortgaged) make up 83.1% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Frankston South scores in decile 9 out of 10, which is well above the national average.
Schools in Frankston South include Derinya Primary School, Mount Erin Secondary College and St Augustine's School.
Frankston South is part of the Frankston statistical area in Victoria.
Frankston South Details
| Postcode | 3199 |
| State | Victoria (VIC) |
| Phone Area Code | 03 |
| Population (2021) | 18,801 |
| Median Age | 44 years |
| Median Household Income (Census 2021) | $2,038/week |
| Median Personal Income (Census 2021) | $862/week |
| Median Weekly Rent (Census 2021) | $420 |
| Median Monthly Mortgage (Census 2021) | $2,167 |
| Average Household Size | 2.6 persons |
| Area | 14.6 km² |
| Population Density | 1291/km² |
| Total Dwellings | 6,820 |
| Australian Citizens | 90.2% |
| Indigenous Population | 136 (0.7%) |
| Unemployment Rate | 3.5% |
| SEIFA IRSAD Decile | 9/10 (well above average) |
| Latitude | -38.188 |
| Longitude | 145.153 |
| Distance from Melbourne | 45 km |
| Region (SA4) | Mornington Peninsula |
| Area (SA3) | Frankston |
| Local Government | Frankston |
| Federal Electorate | Dunkley |
Age Profile
Show counts
| 0–14 years | 3,591 (19.1%) |
| 15–24 years | 2,058 (10.9%) |
| 25–44 years | 3,939 (21.0%) |
| 45–64 years | 5,082 (27.0%) |
| 65+ years | 4,132 (22.0%) |
Housing Tenure
SEIFA Socio-economic Index
Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 9 of 10. Higher deciles indicate more advantage.
Health Conditions (2021 Census)
| Arthritis | 1,851 (9.8%) |
| Asthma | 1,604 (8.5%) |
| Heart Disease | 881 (4.7%) |
| Diabetes | 808 (4.3%) |
| Cancer | 785 (4.2%) |
| Lung Condition | 317 (1.7%) |
| Dementia | 234 (1.2%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 270 (4.0%) |
| 1 vehicle | 2,006 (29.7%) |
| 2 vehicles | 2,969 (44.0%) |
| 3+ vehicles | 1,501 (22.3%) |
Schools in Frankston South
Suburbs Near Frankston South
Same Postcode (3199)
More Frankston South 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.