Marion

South Australia · Adelaide - South · 94,003 people · 26 suburbs · 12 postcodes

Marion at a glance

94,003
Population
#7 of 72 in SA
48
km² area
1,978/km² density
39.4
Median age
-1.9 vs SA
$1,596
Median HH income/wk
#17 of 72 in SA
993
SEIFA IRSAD
#16 of 72 in SA
26
Schools
16 gov, 5 Cath, 5 indep
29.2%
Born overseas
30.9%
Renting

Map shows the Marion LGA boundary in blue with a marker per suburb. Hover for suburb name, click for details.

Marker colour reflects SEIFA IRSAD decile: ● 1-2 (most disadvantaged), ● 3-4, ● 5-6, ● 7-8, ● 9-10 (most advantaged).

Boundary source: ABS ASGS 2021. Map tiles: OpenStreetMap contributors.

Marion is a metropolitan Local Government Area in South Australia, in the Adelaide region. It covers 26 suburbs across 12 postcodes and an area of 48 km². Marion has a population of 94,003 , ranking #7 most populous in SA. The most populous suburb is Hallett Cove (12,512 residents), and the highest median household income is in Marino at $2,091/week. The LGA-wide median household income is $1,596/week and median age is 39.4. About 29.2% of residents were born overseas and 21.2% speak a language other than English at home.

Who lives here

Age structure

0–14 (16.0%) 15–24 (11.8%) 25–44 (29.3%) 45–64 (23.9%) 65+ (19.0%)
Show counts
0–14 years15,045 (16.0%)
15–24 years11,136 (11.8%)
25–44 years27,527 (29.3%)
45–64 years22,477 (23.9%)
65+ years17,835 (19.0%)
29.2%
Born overseas
21.2%
Speak a language other than English at home
1.4%
First Nations
2.4
Avg household size

How they live

Housing tenure

Owned outright (30.9%) Mortgaged (38.3%) Renting (30.9%)

Dwelling type mix

Separate house (76.0%) Semi/townhouse (19.2%) Flat/apartment (4.8%)
$342
Median weekly rent
$1,699
Median monthly mortgage
47.1%
Households with 0-1 cars
52.9%
Households with 2+ cars

Work and learning

5.1%
Unemployment rate
26,920
In full-time work
17,970
In part-time work

Schools in Marion

26 schools across Marion: 61.5% Government, 19.2% Catholic, 19.2% Independent. The SA average is 70.8% / 14.3% / 14.9%. Schools here have a median ICSEA of 1044 (range 964 to 1176). SA median is 999; national mean is 1000.

Sector mix

SA average for comparison
Government Catholic Independent

Type breakdown

Primary (61.5%) Secondary (7.7%) Combined (19.2%) Special (11.5%)

ICSEA range

700 National mean 1000 1300
LGA median 1044 SA median 999LGA range 964 to 1176

ICSEA (Index of Community Socio-Educational Advantage) summarises the socio-economic background of each school's families. Higher values indicate more advantage. Source: ACARA 2025.

All 26 schools in Marion, sorted by enrolment:

School Sector Type Suburb Students ICSEA
Westminster School Independent Combined Marion 1,401 1139
Seaview High School Government Secondary Seacombe Heights 1,377 1038
Hallett Cove School Government Combined Hallett Cove 1,243 999
Emmaus Christian College Independent Combined South Plympton 1,084 1137
Woodend Primary School Government Primary Sheidow Park 631 1050
Hamilton Secondary College Government Secondary Mitchell Park 609 994
St Martin de Porres School Catholic Primary Sheidow Park 530 1060
Stella Maris Parish School Catholic Primary Seacombe Gardens 429 1086
Hallett Cove East Primary School Government Primary Hallett Cove 325 1056
Seaview Downs Primary School Government Primary Seaview Downs 324 1051
Sunrise Christian School Marion Independent Combined Marion 320 1090
Sheidow Park Primary School Government Primary Sheidow Park 290 1020
Warradale Primary School Government Primary Warradale 286 1032
Forbes Primary School Government Primary South Plympton 235 1002
Our Lady of Grace School Catholic Primary Glengowrie 225 1075
Clovelly Park Primary School Government Primary Clovelly Park 222 1038
Ascot Park Primary School Government Primary Park Holme 189 1025
Darlington Primary School Government Primary Seacombe Gardens 184 964
Christ the King School Catholic Primary Warradale 179 1079
Marion Primary School Government Primary Marion 149 1032
St Anthony's School Catholic Primary Edwardstown 116 1090
Dara School Independent Combined Morphettville 93 1176
Hallett Cove South Primary School Government Primary Hallett Cove 77 989
Suneden Specialist School Independent Special Mitchell Park 72 1065
Kilparrin Teaching and Assessment School and Services Government Special Park Holme 34 1035
SA School and Services for Vision Impaired Government Special Park Holme 20 965

Source: ACARA School Profiles 2025. ICSEA shown where reported; some schools (notably small primaries) do not publish ICSEA.

SEIFA socio-economic indexes

SEIFA 2021 ranks Australian areas across four dimensions. Scores are population-weighted averages of suburb-level SEIFA scores within Marion. Higher scores indicate more advantage; the national mean is 1000.

IRSAD

Relative socio-economic advantage and disadvantage

993
Ranked #16 of 72 SA LGAs

IRSD

Relative disadvantage only (lower = more disadvantaged)

1007

IER

Economic resources: income, wealth, housing

971

IEO

Education and occupation: qualifications, skill levels

1013

Suburbs in Marion

Marion contains 26 suburbs and 12 postcodes. Sorted by population.

SuburbPostcodePopulationMedian incomeMedian age
Hallett Cove 5158 12,512 $1,871/wk 43
Sheidow Park 5158 6,731 $2,024/wk 38
Warradale 5046 5,801 $1,626/wk 41
Glengowrie 5044 5,767 $1,821/wk 45
Mitchell Park 5043 5,754 $1,160/wk 37
South Plympton 5038 4,721 $1,552/wk 37
Edwardstown 5039 4,514 $1,360/wk 37
Marion 5043 4,101 $1,366/wk 43
Oaklands Park 5046 3,948 $1,208/wk 39
Plympton Park 5038 3,881 $1,667/wk 36
Morphettville 5043 3,686 $1,414/wk 39
Ascot Park 5043 3,588 $1,381/wk 34
Seacombe Gardens 5047 3,373 $1,420/wk 35
Park Holme 5043 3,199 $1,297/wk 37
Clovelly Park 5042 3,126 $1,600/wk 35
Trott Park 5158 3,124 $1,752/wk 39
Dover Gardens 5048 3,062 $1,423/wk 39
Glandore 5037 3,041 $1,698/wk 39
Sturt 5047 2,787 $1,222/wk 38
Seaview Downs 5049 2,718 $1,741/wk 42
Marino 5049 2,277 $2,091/wk 47
Seacombe Heights 5047 1,549 $1,917/wk 40
Tonsley 5042 743 $1,470/wk 31
Flinders University 5042
Port Stanvac 5160
Warradale North 5046

Postcodes covered

5037, 5038, 5039, 5042, 5043, 5044, 5046, 5047, 5048, 5049, 5158, 5160

Compare Marion with neighbouring LGAs

Side-by-side demographic and socio-economic snapshot of Marion and its closest neighbouring LGAs.

LGA Population Median age Median HH income SEIFA IRSAD % renting % overseas-born
Marion (SA) 94,003 39.4 $1,596/wk 993 30.9% 29.2%
Holdfast Bay 39,719 47.1 $1,649/wk 1045 30.0% 23.5%
Onkaparinga 177,379 41.2 $1,484/wk 952 23.4% 21.2%
Mitcham 66,083 42.6 $2,039/wk 1072 18.5% 23.2%
West Torrens 57,236 38.1 $1,581/wk 1007 38.9% 32.4%
Unley 38,644 42.8 $2,033/wk 1084 32.1% 25.5%

Services and amenities

NDIS Providers NDIS provider directory for Marion Climate & weather Climate data for Hallett Cove

Frequently asked questions about Marion

What is the population of Marion?

The 2021 Census recorded 94,003 people living in Marion, across 26 suburbs.

What suburbs are in Marion?

Marion contains 26 suburbs. The most populous are Hallett Cove, Sheidow Park, Warradale, Glengowrie, Mitchell Park.See the full list in the Suburbs section above.

What postcodes are in Marion?

Marion covers 12 postcodes: 5037, 5038, 5039, 5042, 5043, 5044, 5046, 5047, 5048, 5049, 5158, 5160.

What is the median household income in Marion?

The population-weighted median household income across Marion is $1,596 per week (2021 Census), ranking #17 of 72 SA LGAs.

How many schools are in Marion?

Marion has 26 schools, including 16 government, 5 Catholic, and 5 independent schools (ACARA 2025).

What is the SEIFA score for Marion?

Marion has a population-weighted SEIFA IRSAD score of 993, where the national average is 1000. Higher scores indicate more relative advantage.

Page last reviewed . Data sources: Australian Bureau of Statistics 2021 Census (CC BY 4.0), SEIFA 2021 (IRSD, IRSAD, IER, IEO), ACARA School Profiles 2025, ABS ASGS 2021 LGA boundaries. How this data is sourced.