🔍

St Agnes

SA 5097 • Greater Adelaide

4,233
Population (2021)
$80,964
Median Household Income
2.60 km²
Area
$340/wk
Median Rent
SuburbanFamily-FriendlyMulticulturalEstablishedCommuter Belt

About St Agnes

St Agnes is a suburban locality in Adelaide's north-eastern foothills, situated within the City of Tea Tree Gully approximately 17 kilometres from Adelaide's CBD. Covering 2.6 square kilometres at an elevation of 157 metres, the suburb has a population of 4,233 and a median age of 44. The median household income of $1,557 per week reflects a comfortable middle-income community shaped by a diverse mix of English, German, Italian, and South Asian ancestry — with over 1,000 residents born overseas.

St Agnes is well-positioned near Tea Tree Plaza, one of Adelaide's major suburban shopping centres, and benefits from the O-Bahn Busway — one of Australia's fastest dedicated bus rapid transit corridors — providing swift connections to the Adelaide CBD in under 30 minutes. A range of local schools, including government, Catholic, and independent options, serve a community of established families and long-term residents, while the elevated hillside setting offers pleasant views across metropolitan Adelaide. The suburb's quiet character, affordability relative to inner-Adelaide, and reliable transit links make it a practical and popular choice for families and commuters.

St Agnes falls under postcode 5097 and is governed by Tea Tree Gully Council (LGA). For state elections, residents vote in the Newland electorate.

📍 Location

State
South Australia
Postcode
5097
Urban Area
Tea Tree Gully
LGA / Council
Tea Tree Gully
Federal Electorate
Makin
State Electorate
Newland
Type
Major Urban
Timezone
Adelaide (UTC+9:30)
Coordinates
-34.83°, 138.71°
Statistical Area
Greater Adelaide
Area
2.60 km²
Elevation
157m

🏷️ Property Prices March quarter 2026

Median sale prices in St Agnes for the March quarter 2026. Median house sale prices published by the Office of the Valuer-General SA (Adelaide metropolitan area).

🏡House
$845K
7 sales · YoY n/a

Source: Office of the Valuer-General SA — Metropolitan Median House Sales. Houses only — South Australia does not publish a unit/apartment series. Medians are for the latest quarter; year-on-year change is shown only where both quarters had at least 10 sales.

🏠 Housing 2021 Census

Median Rent (weekly)
$340
Median Mortgage (monthly)
$1,500
Avg Household Size
2.4 people
Median Age
44 years
Social Housing (% of dwellings)
1.8%

23 state housing + 7 community housing dwellings (ABS 2021 Census)

🚌 Transport & Commute

Bus Services

  • Adelaide Metro 520, 521, H22 — Adelaide CBD (King William St) via O-Bahn 25-30 min

Commute to Adelaide CBD

Distance
17 km
By Train
No direct train; O-Bahn bus from Tea Tree Plaza to Adelaide CBD in ~25 min
By Car (Peak)
30-45 min
By Car (Off-Peak)
20-25 min

🛣️ O-Bahn Busway provides fast bus rapid transit; access via Lower North East Road and Montague Road

Walkability Car-Dependent

Some local shops and schools are walkable but most daily errands require a car or bus

🛒 Supermarkets Nearby

  • Coles
    St Agnes Shopping Centre Main North East Road St Agnes 5097 SA
  • ALDI
    North East Road 1244, St Agnes SA 5097

🎓 Schools

🎓 Educational Institution Attending 2021 Census

School Sector Breakdown

👥 Demographics

Census 2016
4,134
Census 2021
4,233
▲ 2.4% growth

Population Growth

Gender Distribution (Census 2021)

Personal Income 2016
$31,928
Personal Income 2021
$38,792
▲ 21.5% increase

2021 Census income breakdown

Personal = median for one earner. Household = all members of a dwelling pooled. Family = related members only. Annual = weekly × 52.

Personal
$38,792 / yr
$746/wk
Household
$80,964 / yr
$1557/wk
Family
$102,596 / yr
$1973/wk

Personal Income Comparison (2016 vs 2021)

📊 Population: ABS Census 2021
💰 Income: ABS Census 2021

🌍 Country of Birth 2021 Census

Born in Australia 3,107
Born Overseas 1,020

Top Countries of Birth (excl. Australia)

  • 1. England 277
  • 2. Italy 129
  • 3. India 97
  • 4. China 43
  • 5. Germany 37
  • 6. Philippines 33
  • 7. Scotland 31
  • 8. New Zealand 24
  • 9. South Africa 24
  • 10. Nepal 21

🧬 Ancestry 2021 Census

Top ancestries reported (people may report up to two)

English 1,755
Australian 1,420
German 405
Italian 377
Scottish 363
Irish 309
Indian 104
Chinese 76
Dutch 66
Polish 61

👨‍👩‍👧 Parents' Birthplace 2021 Census

2,112
Both parents born in Australia
1,405
Both parents born overseas
589
One parent AU, one overseas

🛐 Religion 2021 Census

No Religion
47.0%
Christianity
43.0%
Islam
1.6%
Hinduism
1.3%
Sikhism
1.3%
Buddhism
1.2%

📊 Age Distribution 2021 Census

0-4 years
209 (4.9%)
5-14 years
501 (11.8%)
15-19 years
202 (4.8%)
20-24 years
207 (4.9%)
25-34 years
486 (11.5%)
35-44 years
525 (12.4%)
45-54 years
552 (13.0%)
55-64 years
570 (13.5%)
65-74 years
502 (11.9%)
75-84 years
313 (7.4%)
85+ years
169 (4.0%)

Nearby Suburbs

Frequently Asked Questions

What is St Agnes known for? +

St Agnes is a suburban locality in Adelaide's north-eastern foothills, situated within the City of Tea Tree Gully approximately 17 kilometres from Adelaide's CBD. St Agnes is well-positioned near Tea Tree Plaza, one of Adelaide's major suburban shopping centres, and benefits from the O-Bahn Busway — one of Australia's fastest dedicated bus rapid transit corridors — providing swift connections to t

How far is St Agnes from Adelaide CBD? +

St Agnes is approximately 17 kilometres from Adelaide CBD, with a typical drive taking around 20-31 minutes depending on traffic and route taken.

Does St Agnes have public transport? +

St Agnes is connected to the Adelaide CBD via Adelaide Metro bus services. Adelaide Metro train stations are accessible nearby for rail commuters. The suburb is well-served for public transport in the metropolitan Adelaide context.

What is the population of St Agnes? +

According to the 2021 Census, St Agnes has a population of approximately 4,233 residents, a modest but established community. The suburb falls within the Tea Tree Gully (City) local government area.

Is St Agnes a good place to live? +

St Agnes is a well-regarded family-friendly suburb with parks, schools, and a welcoming community atmosphere. Its residential character and local amenities make it a popular choice for families settling in the area.

What is the postcode for St Agnes? +

The postcode for St Agnes, SA is 5097. This postcode covers St Agnes and may also serve nearby localities within the same postcode zone.

What is the average income in St Agnes? +

Based on the 2021 Census, the median personal income in St Agnes is about $746 per week (around $38,800 per year). The median household income is $1,557 per week and the median family income is $1,973 per week.

What is the median house price in St Agnes? +

As of March quarter 2026, the median house price is $845,000. Figures are based on Office of the Valuer-General SA — Metropolitan Median House Sales.

What is the age profile of St Agnes? +

The median age in St Agnes is 44. The largest age group is 55–64 (570 residents, around 13%). Around 22% of residents are under 20 and about 23% are aged 65 or older. (2021 Census)

How much is rent in St Agnes? +

In St Agnes, the median weekly rent is $340, and the median monthly mortgage repayment is $1,500 (2021 Census).