St Marys vs Tregear

Tregear is the younger of the two, with a median age of 30 against 34 in St Marys. In St Marys, about half of households rent. In Tregear, most households rent and the large majority of homes are detached houses. Houses cost more in St Marys: a median of $1.05 million, against $838,000 in Tregear, and rent is higher there too. On these figures, Tregear tends to suit families with children and buyers on a tighter budget.

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 Marys

ahead on 3 of the 6 things we measure here

  • has more childcare (16 vs 2)
  • has more parks and reserves (17 vs 3)
  • has more schools inside the suburb (4 vs 1)
  • But Tregear has more separate houses rather than flats (90% vs 51%)

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

First-home buyers

Tregear

ahead on the one thing that separates them

  • has cheaper houses ($838,500 vs $1,050,000)

Weighs house prices and mortgage stress.

Renters

Tregear

ahead on the one thing that separates them

  • has cheaper rent ($300/wk vs $365/wk)

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

Commuting to the city

They split

one each way, out of the 4 things we measure here

  • St Marys is more walkable (79/100 vs 66/100)
  • Tregear sits closer to the CBD (47 km vs 50.3 km)

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

Downsizers and retirees

St Marys

ahead on 3 of the 5 things we measure here

  • has more GPs (6 vs 1)
  • has more units and townhouses to downsize into (49% vs 10%)
  • is more walkable (79/100 vs 66/100)

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

Investors

St Marys

ahead on 2 of the 2 things we measure here

  • is growing faster (8.7% vs -4.8%)
  • returns a higher gross yield on houses (3.7% vs 3.2%)

Weighs house yield and population growth.

Where they sit

St Marys and Tregear 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 Marys Tregear
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 Marys Tregear
Walkability 79 / 66
St Marys — Walkability: 79/100 Tregear — Walkability: 66/100
Safety 8 / 7
St Marys — Safety: 8/100 Tregear — Safety: 7/100
Low fire risk 81 / 65
St Marys — Low fire risk: 81/100 Tregear — Low fire risk: 65/100

Demographics

St Marys has more residents (13,256 vs 3,700); St Marys has higher household incomes ($74,724 vs $57,356).

St Marys Tregear
Population 13,256
+72% vs other
 3,700
Population trend (2016 → 2021) +8.7% -4.8%
Median age 34 30
Median household income $74,724/yr
+23% vs other
 $57,356/yr
Median weekly rent $365/wk
+18% vs other
 $300/wk

Age profile

Share of residents in each band, 2021 Census.

St Marys Tregear
0-4 8.2% / 8.3%
St Marys — 0-4: 8.2% Tregear — 0-4: 8.3%
5-14 13.1% / 17.7%
St Marys — 5-14: 13.1% Tregear — 5-14: 17.7%
15-19 5.0% / 7.5%
St Marys — 15-19: 5.0% Tregear — 15-19: 7.5%
20-24 6.8% / 7.4%
St Marys — 20-24: 6.8% Tregear — 20-24: 7.4%
25-34 17.0% / 14.3%
St Marys — 25-34: 17.0% Tregear — 25-34: 14.3%
35-44 14.8% / 11.5%
St Marys — 35-44: 14.8% Tregear — 35-44: 11.5%
45-54 12.1% / 11.0%
St Marys — 45-54: 12.1% Tregear — 45-54: 11.0%
55-64 10.3% / 10.5%
St Marys — 55-64: 10.3% Tregear — 55-64: 10.5%
65-74 7.5% / 6.5%
St Marys — 65-74: 7.5% Tregear — 65-74: 6.5%
75-84 3.8% / 4.5%
St Marys — 75-84: 3.8% Tregear — 75-84: 4.5%
85+ 1.4% / 0.9%
St Marys — 85+: 1.4% Tregear — 85+: 0.9%

Bars are drawn against the largest share shown (17.7%).

Who lives together

Household composition, 2021 Census.

St Marys 37.5% lone person
St Marys — Lone Person: 37.5% St Marys — Couple Families: 33.7% St Marys — One Parent Families: 21.3% St Marys — Group Household: 4.9% St Marys — Other Families: 2.6%
Tregear 32.4% lone person
Tregear — Lone Person: 32.4% Tregear — Couple Families: 27.9% Tregear — One Parent Families: 33.3% Tregear — Group Household: 4.0% Tregear — Other Families: 2.3%
Lone Person Couple Families One Parent Families Group Household Other Families

Who owns and who rents

Occupied private dwellings by tenure, 2021 Census.

St Marys 54.2% renting
St Marys — Owned Outright: 18.4% St Marys — Mortgage: 27.4% St Marys — Renting: 54.2%
Tregear 64.1% renting
Tregear — Owned Outright: 16.4% Tregear — Mortgage: 19.5% Tregear — Renting: 64.1%
Owned outright Mortgage Renting

Qualifications

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

St Marys Tregear
Certificate III & IV 12.7% / 10.8%
St Marys — Certificate III & IV: 12.7% Tregear — Certificate III & IV: 10.8%
Bachelor Degree 8.5% / 2.8%
St Marys — Bachelor Degree: 8.5% Tregear — Bachelor Degree: 2.8%
Advanced Diploma / Diploma 6.1% / 3.5%
St Marys — Advanced Diploma / Diploma: 6.1% Tregear — Advanced Diploma / Diploma: 3.5%
Postgraduate Degree 3.2% / 0.8%
St Marys — Postgraduate Degree: 3.2% Tregear — Postgraduate Degree: 0.8%
Graduate Diploma / Certificate 0.7% / 0.5%
St Marys — Graduate Diploma / Certificate: 0.7% Tregear — Graduate Diploma / Certificate: 0.5%

Bars are drawn against the largest share shown (12.7%).

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 Marys Tregear
New Zealand 3.7% / 4.1%
St Marys — New Zealand: 3.7% Tregear — New Zealand: 4.1%
Philippines 4.6% / 1.3%
St Marys — Philippines: 4.6% Tregear — Philippines: 1.3%
India 3.7% / 0.6%
St Marys — India: 3.7% Tregear — India: 0.6%
England 1.5% / 1.5%
St Marys — England: 1.5% Tregear — England: 1.5%
Fiji 1.5% / 1.4%
St Marys — Fiji: 1.5% Tregear — Fiji: 1.4%
Iraq — / 0.7%
St Marys — Iraq: not among its largest Tregear — Iraq: 0.7%

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

What people live in

Occupied private dwellings by structure, 2021 Census.

St Marys 51.2% houses
St Marys — Houses: 51.2% St Marys — Townhouses: 30.0% St Marys — Flats / Apartments: 18.8%
Tregear 90.3% houses
Tregear — Houses: 90.3% Tregear — Townhouses: 2.5% Tregear — Flats / Apartments: 7.1%
Houses Townhouses Flats / Apartments

Property market

St Marys Tregear
Median house price $1,050,000 $838,500
Median unit price $535,000 —
Median land price $820,000 —
Typical days to sell (houses) 20 days
from 121 sales
 17 days
from 25 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 Marys Tregear
3 bed $1.05M / $830K
St Marys — 3 bed: $1.05M (103 sales) Tregear — 3 bed: $830K (49 sales)

103 vs 49 sales

4 bed $1.16M / $850K
St Marys — 4 bed: $1.16M (39 sales) Tregear — 4 bed: $850K (11 sales)

39 vs 11 sales

Zoning mix

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

St Marys Tregear
Residential 38% 61%
Industrial 28% 0%
Parks and recreation 16% 28%
Infrastructure and transport 7% 5%
Environmental 5% 6%
Other and special use 5% 0%
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 Marys Tregear
New dwellings approved 1,063
across Penrith
 2,325
across Blacktown
Approvals change year on year -78% -18%

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 Marys Tregear
Houses 3.7%
$600/wk on $850K
 3.2%
$540/wk on $890K
Units 5.0%
$480/wk on $502K
 —

Ranking within NSW

St Marys Tregear
House price Higher than 55% of NSW Higher than 37% of NSW
Income Higher than 42% of NSW Higher than 17% of NSW
Schools Higher than 15% of NSW —
Walkability Higher than 92% of NSW Higher than 87% of NSW
Affordability Higher than 37% of NSW Higher than 36% of NSW
EV adoption Higher than 62% of NSW Higher than 32% of NSW
NBN connectivity Higher than 92% of NSW Higher than 80% of NSW
Rental yield (houses) Higher than 54% of NSW Higher than 28% of NSW
Rental yield (units) Higher than 66% of NSW —

Liveability

St Marys scores higher overall (34 vs 28); St Marys is more walkable (79 vs 66).

St Marys Tregear
Grade C D
Score 34/100 28/100
Socio-economic band below-average income
decile 2/10
 high-need area
decile 1/10

Risk profile

Tregear carries more bushfire risk (35 vs 19).

St Marys Tregear
Bushfire Low
19/100
 Low
35/100
Crime High
92/100
 High
93/100
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 5
within 5 km
same for both

Schools

St Marys Tregear
Inside the suburb 4 1
Rated above peers 0
same for both
Rated at peers 1 0
Rated below peers 2 1
Universities within 10 km 1
Western Sydney University - Penrith, 4.4 km
 1
Western Sydney University - Penrith, 6.7 km
Full-time students aged 15–24 1.3% 0.8%

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

Schools in Tregear

  • Tregear Public School Government · Primary below peers

Amenities in the suburb

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

Mobility

St Marys sits further from the CBD (50.3 km vs 47 km).

St Marys Tregear
Walkability score 79/100 66/100
Distance to Sydney 50.3 km
+7% vs other
 47 km
Drive time (normal traffic) 50 min 47 min
Public transport score 79/100
Rail · Bus
 79/100
Bus
Peak arrivals per hour 417.5
7-9am + 5-7pm
 135.2
7-9am + 5-7pm
Median peak wait 0 min
scheduled, not actual
same for both
Electric vehicle share 0.6%
postcode 2760
 0.3%
postcode 2770
Rooftop solar per 100 dwellings 34
postcode 2760
 37
postcode 2770

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 Marys Tregear
Car (driver) 60.7% / 66.9%
St Marys — Car (driver): 60.7% Tregear — Car (driver): 66.9%
Worked from Home 25.0% / 18.2%
St Marys — Worked from Home: 25.0% Tregear — Worked from Home: 18.2%
Car (passenger) 6.0% / 8.0%
St Marys — Car (passenger): 6.0% Tregear — Car (passenger): 8.0%
Train 5.5% / 4.2%
St Marys — Train: 5.5% Tregear — Train: 4.2%
Bus 0.9% / 2.0%
St Marys — Bus: 0.9% Tregear — Bus: 2.0%
Walked Only 1.3% / 0.7%
St Marys — Walked Only: 1.3% Tregear — Walked Only: 0.7%

Bars are drawn against the largest share shown (66.9%).

Setting

St Marys Tregear
Elevation 35 m
above sea level, at the suburb centre
 47 m
above sea level, at the suburb centre
Distance to the ocean 42.1 km 41.2 km

NBN connectivity

St Marys Tregear
Connectivity score 85/100 73/100
Most common technology Fibre to the curb Hybrid fibre-coaxial
Full-fibre (FTTP) share 35%
7,260 premises
 20%
1,389 premises

Climate

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

Air quality (annual mean)

St Marys Tregear
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 Marys Tregear
Average residential rate $1,547/yr $1,157/yr
Council Penrith Blacktown

Federal electorate

St Marys Tregear
Division Lindsay Chifley
Member Melissa Mcintosh Ed Husic
Party Liberal Australian Labor Party

First Home Owner Grant

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

Tags

St Marys

Multicultural Outer Parks Townhouses

Tregear

Family Outer Parks River

More comparisons

Other comparisons with St Marys

St Marys vs St Clair St Marys vs Jordan Springs St Marys vs Colyton St Marys vs Ropes Crossing St Marys vs Werrington St Marys vs Claremont Meadows

Other comparisons with Tregear

Tregear vs Ropes Crossing Tregear vs Whalan Tregear vs Lethbridge Park Tregear vs North St Marys Tregear vs Emerton
Full data on St Marys Full data on Tregear
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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