St Clair vs St Marys

In St Clair, the large majority of households own their home, the large majority of homes are detached houses, and most households are couple families. In St Marys, about half of households rent. Houses cost more in St Clair: a median of $1.18 million, against $1.05 million in St Marys, and rent is higher there too. St Clair is closer to the city centre: 44.7 km, against 50.3 km. On these figures, St Clair tends to suit couples, while St Marys suits renters and people living alone.

Which one suits you?

There is no overall winner — the suburb that suits a family with school-age kids is routinely the wrong one for someone commuting into the city. So each of these answers its own question, against a checklist you can see, using the same figures in the tables below.

Families with school-age kids

St Clair

ahead on 3 of the 5 things we measure here

  • has more schools rated above their peers (1 vs 0)
  • has more separate houses rather than flats (98% vs 51%)
  • is already more of a family suburb (78% vs 55%)
  • But St Marys has more parks and reserves (17 vs 12)

Weighs schools, house stock, parks, childcare, and who already lives there.

First-home buyers

They split

one each way, out of the 2 things we measure here

  • St Clair leaves households under less mortgage stress (24% vs 30%)
  • St Marys has cheaper houses ($1,050,000 vs $1,175,000)

Weighs house prices and mortgage stress.

Renters

St Marys

ahead on 2 of the 3 things we measure here

  • has a bigger rental market to choose from (54% vs 22%)
  • has cheaper rent ($365/wk vs $440/wk)

Weighs rent, rental stress, and how much is for rent.

Commuting to the city

St Clair

ahead on 2 of the 4 things we measure here

  • has a shorter drive in (42 min vs 50 min)
  • sits closer to the CBD (44.7 km vs 50.3 km)

Weighs distance, drive time, rail access, and walkability.

Downsizers and retirees

St Marys

ahead on the one thing that separates them

  • has more units and townhouses to downsize into (49% vs 2%)

Weighs smaller dwellings, who already lives there, GPs, and walkability.

Investors

St Marys

ahead on the one thing that separates them

  • is growing faster (8.7% vs 0.2%)

Weighs house yield and population growth.

Where they sit

St Clair and St Marys drawn to the same scale. Both outlines are shown together, so the map answers whether they share a border and how their areas compare.

St Clair St Marys
Hides rows where both suburbs match

Bars start at zero. Scores, risks and rankings are drawn against their full 0–100 range; other rows are drawn in proportion to the larger of the two.

Side by side, out of 100

Risks are inverted — shown as safety and low exposure — so a longer bar always means better.

St Clair St Marys
Walkability 86 / 79
St Clair — Walkability: 86/100 St Marys — Walkability: 79/100
Low fire risk 100 / 81
St Clair — Low fire risk: 100/100 St Marys — Low fire risk: 81/100

Demographics

St Clair has more residents (19,942 vs 13,256); St Clair has higher household incomes ($107,484 vs $74,724).

St Clair St Marys
Population 19,942
+34% vs other
 13,256
Population trend (2016 → 2021) +0.2% +8.7%
Median age 36 34
Median household income $107,484/yr
+30% vs other
 $74,724/yr
Median weekly rent $440/wk
+17% vs other
 $365/wk

Age profile

Share of residents in each band, 2021 Census.

St Clair St Marys
0-4 6.8% / 8.2%
St Clair — 0-4: 6.8% St Marys — 0-4: 8.2%
5-14 14.1% / 13.1%
St Clair — 5-14: 14.1% St Marys — 5-14: 13.1%
15-19 6.5% / 5.0%
St Clair — 15-19: 6.5% St Marys — 15-19: 5.0%
20-24 6.1% / 6.8%
St Clair — 20-24: 6.1% St Marys — 20-24: 6.8%
25-34 14.3% / 17.0%
St Clair — 25-34: 14.3% St Marys — 25-34: 17.0%
35-44 13.9% / 14.8%
St Clair — 35-44: 13.9% St Marys — 35-44: 14.8%
45-54 12.0% / 12.1%
St Clair — 45-54: 12.0% St Marys — 45-54: 12.1%
55-64 13.6% / 10.3%
St Clair — 55-64: 13.6% St Marys — 55-64: 10.3%
65-74 9.3% / 7.5%
St Clair — 65-74: 9.3% St Marys — 65-74: 7.5%
75-84 2.8% / 3.8%
St Clair — 75-84: 2.8% St Marys — 75-84: 3.8%
85+ 0.7% / 1.4%
St Clair — 85+: 0.7% St Marys — 85+: 1.4%

Bars are drawn against the largest share shown (17.0%).

Who lives together

Household composition, 2021 Census.

St Clair 57.9% couple families
St Clair — Couple Families: 57.9% St Clair — Lone Person: 18.7% St Clair — One Parent Families: 20.2% St Clair — Group Household: 2.2% St Clair — Other Families: 1.1%
St Marys 33.7% couple families
St Marys — Couple Families: 33.7% St Marys — Lone Person: 37.5% St Marys — One Parent Families: 21.3% St Marys — Group Household: 4.9% St Marys — Other Families: 2.6%
Couple Families Lone Person One Parent Families Group Household Other Families

Who owns and who rents

Occupied private dwellings by tenure, 2021 Census.

St Clair 21.7% renting
St Clair — Owned Outright: 31.2% St Clair — Mortgage: 47.1% St Clair — Renting: 21.7%
St Marys 54.2% renting
St Marys — Owned Outright: 18.4% St Marys — Mortgage: 27.4% St Marys — Renting: 54.2%
Owned outright Mortgage Renting

Where residents were born

Largest overseas birthplaces, as a share of all residents, 2021 Census. A dash means that country is not among the suburb's own eight largest.

St Clair St Marys
Philippines 3.5% / 4.6%
St Clair — Philippines: 3.5% St Marys — Philippines: 4.6%
New Zealand 2.6% / 3.7%
St Clair — New Zealand: 2.6% St Marys — New Zealand: 3.7%
India 2.5% / 3.7%
St Clair — India: 2.5% St Marys — India: 3.7%
England 2.0% / 1.5%
St Clair — England: 2.0% St Marys — England: 1.5%
Fiji 0.8% / 1.5%
St Clair — Fiji: 0.8% St Marys — Fiji: 1.5%

Bars are drawn against the largest share shown (4.6%).

Qualifications

Highest non-school qualification, residents 15+, 2021 Census.

St Clair St Marys
Certificate III & IV 16.1% / 12.7%
St Clair — Certificate III & IV: 16.1% St Marys — Certificate III & IV: 12.7%
Bachelor Degree 8.8% / 8.5%
St Clair — Bachelor Degree: 8.8% St Marys — Bachelor Degree: 8.5%
Advanced Diploma / Diploma 7.0% / 6.1%
St Clair — Advanced Diploma / Diploma: 7.0% St Marys — Advanced Diploma / Diploma: 6.1%
Postgraduate Degree 2.3% / 3.2%
St Clair — Postgraduate Degree: 2.3% St Marys — Postgraduate Degree: 3.2%
Graduate Diploma / Certificate 0.8% / 0.7%
St Clair — Graduate Diploma / Certificate: 0.8% St Marys — Graduate Diploma / Certificate: 0.7%

Bars are drawn against the largest share shown (16.1%).

What people live in

Occupied private dwellings by structure, 2021 Census.

St Clair 98.4% houses
St Clair — Houses: 98.4% St Clair — Townhouses: 0.9% St Clair — Flats / Apartments: 0.7%
St Marys 51.2% houses
St Marys — Houses: 51.2% St Marys — Townhouses: 30.0% St Marys — Flats / Apartments: 18.8%
Houses Townhouses Flats / Apartments

Property market

St Clair St Marys
Median house price $1,175,000 $1,050,000
Median unit price — $535,000
Median land price — $820,000
Typical days to sell (houses) 22 days
from 132 sales
 20 days
from 121 sales

House price by bedroom count

Only bed counts both suburbs published enough sales for. Sale counts are shown because the buckets differ in depth.

St Clair St Marys
3 bed $1.14M / $1.05M
St Clair — 3 bed: $1.14M (152 sales) St Marys — 3 bed: $1.05M (103 sales)

152 vs 103 sales

4 bed $1.2M / $1.16M
St Clair — 4 bed: $1.2M (80 sales) St Marys — 4 bed: $1.16M (39 sales)

80 vs 39 sales

5 bed $1.33M / $1.45M
St Clair — 5 bed: $1.33M (26 sales) St Marys — 5 bed: $1.45M (9 sales)

26 vs 9 sales

Zoning mix

St Marys has more industrially zoned land (28% vs 0%).

St Clair St Marys
Residential 80% 38%
Industrial 0% 28%
Parks and recreation 13% 16%
Infrastructure and transport 6% 7%
Environmental 0% 5%
Other and special use 0% 5%
Zoning sets what may be built, not what is there today. A single address can sit in a different zone to the suburb around it. Zones as at 2026-09.

Development activity

St Clair St Marys
New dwellings approved 1,063
across Penrith
same for both
Approvals change year on year -78%
same for both

Gross rental yield

Gross — before strata, rates, management, insurance and vacancy. From median advertised rents and median asking prices over the last 6 months. How we calculate.

St Clair St Marys
Houses 3.4%
$750/wk on $1.16M
 3.7%
$600/wk on $850K
Units — 5.0%
$480/wk on $502K

Ranking within NSW

St Clair St Marys
House price Higher than 59% of NSW Higher than 55% of NSW
Income Higher than 73% of NSW Higher than 42% of NSW
Schools Higher than 40% of NSW Higher than 15% of NSW
Walkability Higher than 95% of NSW Higher than 92% of NSW
Affordability Higher than 61% of NSW Higher than 37% of NSW
EV adoption Higher than 50% of NSW Higher than 62% of NSW
NBN connectivity Higher than 85% of NSW Higher than 92% of NSW
Rental yield (houses) Higher than 38% of NSW Higher than 54% of NSW
Rental yield (units) — Higher than 66% of NSW

Liveability

St Clair scores higher overall (64 vs 34).

St Clair St Marys
Grade B C
Score 64/100 34/100
Socio-economic band mid-range socio-economic
decile 5/10
 below-average income
decile 2/10

Risk profile

St Marys carries more bushfire risk (19 vs 0).

St Clair St Marys
Bushfire None
0/100
 Low
19/100
Crime — High
92/100
Flood Not mapped
no mapped data here
same for both
Coastal erosion None
0/100
same for both
Aircraft noise None
0/100
same for both
Industrial facilities nearby 11
within 5 km
 5
within 5 km

Schools

St Clair St Marys
Inside the suburb 6 4
Rated above peers 1 0
Rated at peers 5 1
Rated below peers 0 2
Universities within 10 km 1
Western Sydney University - Penrith, 6.7 km
 1
Western Sydney University - Penrith, 4.4 km
Full-time students aged 15–24 1.9% 1.3%

Schools in St Clair

  • Clairgate Public School Government · Primary above peers
  • Banks Public School Government · Primary at peers
  • Blackwell Public School Government · Primary at peers
  • Holy Spirit Primary School Catholic · Primary at peers
  • St Clair High School Government · Secondary at peers
  • St Clair Public School Government · Primary at peers

Schools in St Marys

  • Our Lady of The Rosary Primary School Catholic · Primary at peers
  • St Marys Public School Government · Primary below peers
  • St Marys South Public School Government · Primary below peers
  • St Marys Senior High School Government · Secondary

Amenities in the suburb

St Clair St Marys
Supermarkets 2 7
Cafes & restaurants 9 23
Parks & reserves 12 17
Childcare 15 16
GPs 5 6
Pharmacies 2 8
Police stations 0 1
Banks & Bank@Post 2 6
Fuel stations 2 5
Waterways 3 13

Mobility

St Marys sits further from the CBD (50.3 km vs 44.7 km).

St Clair St Marys
Walkability score 86/100 79/100
Distance to Sydney 44.7 km 50.3 km
+13% vs other
Drive time (normal traffic) 42 min 50 min
Public transport score 79/100
Bus
 79/100
Rail · Bus
Peak arrivals per hour 406.5
7-9am + 5-7pm
 417.5
7-9am + 5-7pm
Median peak wait 0 min
scheduled, not actual
same for both
Electric vehicle share 0.5%
postcode 2759
 0.6%
postcode 2760
Rooftop solar per 100 dwellings 55
postcode 2759
 34
postcode 2760

How people get to work

Method of travel on census day 2021 — which fell during COVID restrictions, so working from home is inflated and every travel mode understated.

St Clair St Marys
Car (driver) 62.1% / 60.7%
St Clair — Car (driver): 62.1% St Marys — Car (driver): 60.7%
Worked from Home 30.1% / 25.0%
St Clair — Worked from Home: 30.1% St Marys — Worked from Home: 25.0%
Car (passenger) 4.4% / 6.0%
St Clair — Car (passenger): 4.4% St Marys — Car (passenger): 6.0%
Train 2.1% / 5.5%
St Clair — Train: 2.1% St Marys — Train: 5.5%
Walked Only 0.6% / 1.3%
St Clair — Walked Only: 0.6% St Marys — Walked Only: 1.3%
Bus 0.7% / 0.9%
St Clair — Bus: 0.7% St Marys — Bus: 0.9%

Bars are drawn against the largest share shown (62.1%).

Setting

St Clair St Marys
Elevation 47 m
above sea level, at the suburb centre
 35 m
above sea level, at the suburb centre
Distance to the ocean 38.9 km 42.1 km

NBN connectivity

St Clair St Marys
Connectivity score 75/100 85/100
Most common technology Hybrid fibre-coaxial Fibre to the curb
Full-fibre (FTTP) share 0%
6,757 premises
 35%
7,260 premises

Climate

St Clair St Marys
Annual rainfall 822 mm
same for both
Summer max (Jan) —
same for both
Winter min (Jul) —
same for both

Air quality (annual mean)

St Clair St Marys
PM2.5 5.6 µg/m³
same for both
PM10 17.6 µg/m³
same for both
NO₂ 0.55 pphm
same for both

Council rates

St Clair St Marys
Average residential rate $1,547/yr
same for both
Council Penrith
same for both

Federal electorate

St Clair St Marys
Division Mcmahon Lindsay
Member Chris Bowen Melissa Mcintosh
Party Australian Labor Party Liberal

First Home Owner Grant

St Clair St Marys
Grant amount $10,000
same for both
Property price cap $600,000
same for both
Eligibility New
same for both

Tags

St Clair

Outer Parks

St Marys

Multicultural Outer Parks Townhouses

More comparisons

Other comparisons with St Clair

St Clair vs Colyton St Clair vs Erskine Park St Clair vs Orchard Hills

Other comparisons with St Marys

St Marys vs Jordan Springs St Marys vs Colyton St Marys vs Ropes Crossing St Marys vs Werrington St Marys vs Claremont Meadows St Marys vs Oxley Park
Full data on St Clair Full data on St Marys
Unlock full address-level data — $29/month

Information shown is provided as-is from Australian government and commercial data sources.
Always verify with the relevant authority before making property decisions.
See Data Sources and How We Calculate for details.

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