Mount George Postcode

South Australia

Inner Regional Top 10% SEIFA Above SA income
5155
Postcode for Mount George, SA
Phone area code: 08 · 17 km from Adelaide · Pop. 276
276
Population
53
Median Age
$2,416
Household Income/wk
$210
Median Rent/wk
10/10
SEIFA Advantage
8.2
Area (km²)

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

Where Mount George ranks: household income is in the top 10% of SA suburbs; SEIFA decile 10 puts it in the top 20% of Australia for socio-economic advantage.

How Mount George Compares

Mount George vs the SA average and the national average (2021 Census, population-weighted).

MetricMount GeorgeSA avgAU avgGreater Adelaide
Household income/wk $2,416 +SA $1,545 $1,836 $1,620
Rent/wk $210 -SA $308 $390 $329
Mortgage/month $2,263 +SA $1,558 $1,958 $1,666
Median age 53 45.0 45.0 42.0
SEIFA decile 10/10 +SA 5.0/10 6.0/10 7.0/10
Unemployment 0.0% -SA 6.0% 5.0% 6.0%

Green pill = at least 10% above the SA average; red = at least 10% below; grey = within 10%. For unemployment, colour polarity is inverted: lower is better.

Mount George is a locality 17 km from Adelaide in South Australia, classified as inner regional by the ABS. The postcode is 5155. It falls within the Adelaide - Central and Hills region. The local government area is Adelaide Hills.

According to the 2021 Census, Mount George has a population of 276 with a median age of 53. The median weekly household income is $2,416, above the SA average.

Housing in Mount George includes a median weekly rent of $210, median monthly mortgage repayment of $2,263, with 104 total dwellings. These housing costs sit above the SA 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 George scores in decile 10 out of 10, which is well above the national average.

Mount George is part of the Adelaide Hills statistical area in South Australia.

Mount George Details

Postcode5155
StateSouth Australia (SA)
Phone Area Code08
Population (2021)276
Median Age53 years
Median Household Income (Census 2021)$2,416/week
Median Personal Income (Census 2021)$1,093/week
Median Weekly Rent (Census 2021)$210
Median Monthly Mortgage (Census 2021)$2,263
Average Household Size2.5 persons
Area8.2 km²
Population Density34/km²
Total Dwellings104
Australian Citizens94.6%
Unemployment Rate0.0%
SEIFA IRSAD Decile10/10 (well above average)
Latitude-34.9940686
Longitude138.7743842
Distance from Adelaide17 km
Region (SA4)Adelaide - Central and Hills
Area (SA3)Adelaide Hills
Local GovernmentAdelaide Hills
Federal ElectorateMayo

Age Profile

0–14 (15.2%) 15–24 (7.6%) 25–44 (10.5%) 45–64 (35.5%) 65+ (26.8%)
Show counts
0–14 years42 (15.2%)
15–24 years21 (7.6%)
25–44 years29 (10.5%)
45–64 years98 (35.5%)
65+ years74 (26.8%)

Housing Tenure

Owned outright (52.0%) Mortgaged (48.0%) Rented (0.0%)

SEIFA Socio-economic Index

Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 10 of 10. Higher deciles indicate more advantage.

Health Conditions (2021 Census)

Arthritis30 (10.9%)
Asthma19 (6.9%)
Heart Disease18 (6.5%)
Diabetes12 (4.3%)
Cancer11 (4.0%)
Lung Condition4 (1.4%)

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

Motor Vehicles per Dwelling

No vehicle0 (0.0%)
1 vehicle19 (18.1%)
2 vehicles47 (44.8%)
3+ vehicles39 (37.1%)

Suburbs Near Mount George

Same Postcode (5155)

More Mount George 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.