Alexandrina

South Australia · South Australia - South East · 28,991 people · 53 suburbs · 11 postcodes

Alexandrina at a glance

28,991
Population
#17 of 72 in SA
1,698
km² area
17/km² density
53.2
Median age
+11.9 vs SA
950
SEIFA IRSAD
#35 of 72 in SA
7
Schools
6 gov, 0 Cath, 1 indep
16.2%
Born overseas
18.5%
Renting

Map shows the Alexandrina 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.

Federal electorate boundaries can be toggled on the map. Boundary source: ABS ASGS 2021 CED boundaries.

Alexandrina is a Local Government Area in South Australia, in the Adelaide region. It covers 53 suburbs across 11 postcodes and an area of 1,698 km². Alexandrina has a population of 28,991 , ranking #17 most populous in SA. The most populous suburb is Strathalbyn (7,246 residents).About 16.2% of residents were born overseas and 2.7% speak a language other than English at home.

Who lives here

Age structure

0–14 (14.2%) 15–24 (8.4%) 25–44 (16.9%) 45–64 (27.8%) 65+ (32.7%)
Show counts
0–14 years4,105 (14.2%)
15–24 years2,432 (8.4%)
25–44 years4,884 (16.9%)
45–64 years8,026 (27.8%)
65+ years9,451 (32.7%)
16.2%
Born overseas
2.7%
Speak a language other than English at home
1.6%
First Nations
2.3
Avg household size

How they live

Housing tenure

Owned outright (46.7%) Mortgaged (34.8%) Renting (18.5%)

Dwelling type mix

Separate house (96.3%) Semi/townhouse (3.1%) Flat/apartment (0.6%)
$287
Median weekly rent
$1,395
Median monthly mortgage
38.2%
Households with 0-1 cars
61.8%
Households with 2+ cars

Work and learning

4.7%
Unemployment rate
5,902
In full-time work
4,911
In part-time work

Schools in Alexandrina

7 schools across Alexandrina: 85.7% Government, 0% Catholic, 14.3% Independent. The SA average is 70.8% / 14.3% / 14.9%. Schools here have a median ICSEA of 984 (range 957 to 1013). SA median is 999; national mean is 1000.

Sector mix

SA average for comparison
Government Catholic Independent

Type breakdown

Primary (42.9%) Secondary (14.3%) Combined (42.9%) Special (0%)

ICSEA range

700 National mean 1000 1300
LGA median 984 SA median 999LGA range 957 to 1013

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 7 schools in Alexandrina, sorted by enrolment:

School Sector Type Suburb Students ICSEA
Eastern Fleurieu R-12 School Government Combined Strathalbyn 1,332 981
Mount Compass Area School Government Combined Mount Compass 469 987
Port Elliot Primary School Government Primary Port Elliot 351 990
Tyndale Christian School Strathalbyn Independent Combined Strathalbyn 317 1013
Goolwa Secondary College Government Secondary Goolwa 285 957
Goolwa Primary School Government Primary Goolwa 281 972
Raukkan Aboriginal School Government Primary Raukkan 15

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 Alexandrina. Higher scores indicate more advantage; the national mean is 1000.

IRSAD

Relative socio-economic advantage and disadvantage

950
Ranked #35 of 72 SA LGAs

IRSD

Relative disadvantage only (lower = more disadvantaged)

988

IER

Economic resources: income, wealth, housing

1007

IEO

Education and occupation: qualifications, skill levels

942

Suburbs in Alexandrina

Alexandrina contains 53 suburbs and 11 postcodes. Sorted by population.

SuburbPostcodePopulationMedian incomeMedian age
Strathalbyn 5255 7,246 $1,254/wk 47
Goolwa 5214 2,558 $790/wk 67
Port Elliot 5212 2,251 $1,073/wk 61
Goolwa Beach 5214 2,222 $916/wk 58
Hindmarsh Island 5214 1,846 $1,123/wk 60
Mount Compass 5210 1,580 $1,655/wk 40
Goolwa North 5214 1,307 $948/wk 66
Middleton 5213 1,298 $1,330/wk 49
Goolwa South 5214 1,041 $961/wk 62
Milang 5256 962 $858/wk 55
Clayton Bay 5256 472 $863/wk 60
Langhorne Creek 5255 444 $1,674/wk 49
Currency Creek 5214 443 $1,625/wk 48
Chiton 5211 440 $1,212/wk 63
Highland Valley 5255 384 $2,291/wk 47
Willyaroo 5255 376 $1,390/wk 47
Ashbourne 5157 308 $1,660/wk 46
Finniss 5255 293 $1,406/wk 49
Tooperang 5255 271 $1,825/wk 45
Woodchester 5255 253 $1,899/wk 43
Nangkita 5210 242 $1,583/wk 45
Paris Creek 5201 206 $1,768/wk 52
Kuitpo 5172 198 $2,571/wk 55
Yundi 5172 168 $1,687/wk 42
Pages Flat 5172 164 $2,100/wk 44
Prospect Hill 5201 158 $2,071/wk 47
Mount Jagged 5211 155 $1,800/wk 41
Willunga Hill 5172 150 $2,055/wk 41
Hartley 5255 149 $1,958/wk 50
Red Creek 5255 145 $2,214/wk 39
Hope Forest 5172 143 $1,949/wk 42
Mosquito Hill 5214 137 $2,024/wk 45
Belvidere 5255 118 $1,562/wk 49
Gemmells 5255 99 $2,333/wk 39
Sandergrove 5255 98 $2,042/wk 36
Angas Plains 5255 81 $1,218/wk 43
Dingabledinga 5172 80 $2,833/wk 49
Bletchley 5255 76 $1,875/wk 41
Mcharg Creek 5157 72 $1,458/wk 51
Point Sturt 5256 64 $1,124/wk 56
Mount Magnificent 5210 60 $1,624/wk 49
Lake Plains 5255 48 $850/wk 47
Kuitpo Colony 5172 47 $1,624/wk 30
Nurragi 5256 30 $1,625/wk 40
Blackfellows Creek 5201 28 $1,166/wk 57
Montarra 5172 28 $1,875/wk 53
Kyeema 5172 21 $2,249/wk 53
Tolderol 5256 21 $1,375/wk 58
Mount Observation 5255 10 $2,250/wk 39
East Wellington 5259
Mundoo Island 5214
Point Mcleay 5259
Raukkan 5259

Postcodes covered

5157, 5172, 5201, 5210, 5211, 5212, 5213, 5214, 5255, 5256, 5259

Compare Alexandrina with neighbouring LGAs

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

LGA Population Median age SEIFA IRSAD % renting % overseas-born
Alexandrina (SA) 28,991 53.2 950 18.5% 16.2%
Mount Barker 39,079 39.2 1003 22.2% 15.1%
Onkaparinga 177,379 41.2 952 23.4% 21.2%
Victor Harbor 16,326 59.0 928 21.8% 19.3%
Murray Bridge 21,404 43.2 865 33.5% 12.7%
Coorong 5,481 48.1 911 25.7% 8.5%

Services and amenities

NDIS Providers NDIS provider directory for Alexandrina Climate & weather Climate data for Strathalbyn

Frequently asked questions about Alexandrina

What is the population of Alexandrina?

The 2021 Census recorded 28,991 people living in Alexandrina, across 53 suburbs.

What suburbs are in Alexandrina?

Alexandrina contains 53 suburbs. The most populous are Strathalbyn, Goolwa, Port Elliot, Goolwa Beach, Hindmarsh Island.See the full list in the Suburbs section above.

What postcodes are in Alexandrina?

Alexandrina covers 11 postcodes: 5157, 5172, 5201, 5210, 5211, 5212, 5213, 5214, 5255, 5256, 5259.

How many schools are in Alexandrina?

Alexandrina has 7 schools, including 6 government, 0 Catholic, and 1 independent schools (ACARA 2025).

What is the SEIFA score for Alexandrina?

Alexandrina has a population-weighted SEIFA IRSAD score of 950, 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.