Llandilo vs St Marys

St Marys is the younger of the two, with a median age of 34 against 38 in Llandilo. In Llandilo, most 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 Llandilo: a median of $2.83 million, against $1.05 million in St Marys, and rent is higher there too. On these figures, Llandilo tends to suit couples, while St Marys suits renters, people living alone, 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

They split

one each way, out of the 6 things we measure here

  • Llandilo has more separate houses rather than flats (98% vs 51%)
  • St Marys has more parks and reserves (17 vs 1)

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

First-home buyers

St Marys

ahead on 2 of the 3 things we measure here

  • has cheaper land ($820,000 vs $2,503,000)
  • has cheaper houses ($1,050,000 vs $2,835,000)

Weighs house prices, land 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 27%)
  • has cheaper rent ($365/wk vs $500/wk)

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

Commuting to the city

St Marys

ahead on 3 of the 4 things we measure here

  • is more walkable (79/100 vs 38/100)
  • sits closer to the CBD (50.3 km vs 63.3 km)
  • has a shorter drive in (50 min vs 57 min)

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 units and townhouses to downsize into (49% vs 2%)
  • has more GPs (6 vs 0)
  • is more walkable (79/100 vs 38/100)
  • But Llandilo carries lower crime risk (75/100 vs 92/100)

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

Investors

St Marys

ahead on the one thing that separates them

  • is growing faster (8.7% vs -1.2%)

Weighs population growth.

Where they sit

Llandilo 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.

Llandilo 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.

Llandilo St Marys
Walkability 38 / 79
Llandilo — Walkability: 38/100 St Marys — Walkability: 79/100
Safety 25 / 8
Llandilo — Safety: 25/100 St Marys — Safety: 8/100
Low fire risk 36 / 81
Llandilo — Low fire risk: 36/100 St Marys — Low fire risk: 81/100

Demographics

St Marys has more residents (13,256 vs 1,618); Llandilo rents higher ($500/wk vs $365/wk).

Llandilo St Marys
Population 1,618 13,256
+719% vs other
Population trend (2016 → 2021) -1.2% +8.7%
Median age 38 34
Median household income $97,708/yr
+24% vs other
 $74,724/yr
Median weekly rent $500/wk
+27% vs other
 $365/wk

Age profile

Share of residents in each band, 2021 Census.

Llandilo St Marys
0-4 5.6% / 8.2%
Llandilo — 0-4: 5.6% St Marys — 0-4: 8.2%
5-14 14.2% / 13.1%
Llandilo — 5-14: 14.2% St Marys — 5-14: 13.1%
15-19 8.5% / 5.0%
Llandilo — 15-19: 8.5% St Marys — 15-19: 5.0%
20-24 7.2% / 6.8%
Llandilo — 20-24: 7.2% St Marys — 20-24: 6.8%
25-34 10.3% / 17.0%
Llandilo — 25-34: 10.3% St Marys — 25-34: 17.0%
35-44 12.0% / 14.8%
Llandilo — 35-44: 12.0% St Marys — 35-44: 14.8%
45-54 13.8% / 12.1%
Llandilo — 45-54: 13.8% St Marys — 45-54: 12.1%
55-64 11.6% / 10.3%
Llandilo — 55-64: 11.6% St Marys — 55-64: 10.3%
65-74 8.8% / 7.5%
Llandilo — 65-74: 8.8% St Marys — 65-74: 7.5%
75-84 5.5% / 3.8%
Llandilo — 75-84: 5.5% St Marys — 75-84: 3.8%
85+ 1.4% / 1.4%
Llandilo — 85+: 1.4% St Marys — 85+: 1.4%

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

Who lives together

Household composition, 2021 Census.

Llandilo 60.1% couple families
Llandilo — Couple Families: 60.1% Llandilo — Lone Person: 23.1% Llandilo — One Parent Families: 14.0% Llandilo — Group Household: 1.7% Llandilo — 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.

Llandilo 27.2% renting
Llandilo — Owned Outright: 49.8% Llandilo — Mortgage: 23.0% Llandilo — Renting: 27.2%
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

Qualifications

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

Llandilo St Marys
Certificate III & IV 18.9% / 12.7%
Llandilo — Certificate III & IV: 18.9% St Marys — Certificate III & IV: 12.7%
Bachelor Degree 4.9% / 8.5%
Llandilo — Bachelor Degree: 4.9% St Marys — Bachelor Degree: 8.5%
Advanced Diploma / Diploma 4.7% / 6.1%
Llandilo — Advanced Diploma / Diploma: 4.7% St Marys — Advanced Diploma / Diploma: 6.1%
Postgraduate Degree 1.2% / 3.2%
Llandilo — Postgraduate Degree: 1.2% St Marys — Postgraduate Degree: 3.2%
Graduate Diploma / Certificate — / 0.7%
Llandilo — Graduate Diploma / Certificate: not among its largest St Marys — Graduate Diploma / Certificate: 0.7%

Bars are drawn against the largest share shown (18.9%).

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.

Llandilo St Marys
New Zealand 1.0% / 3.7%
Llandilo — New Zealand: 1.0% St Marys — New Zealand: 3.7%
Philippines — / 4.6%
Llandilo — Philippines: not among its largest St Marys — Philippines: 4.6%
India — / 3.7%
Llandilo — India: not among its largest St Marys — India: 3.7%
England 1.6% / 1.5%
Llandilo — England: 1.6% St Marys — England: 1.5%
China 1.8% / 0.8%
Llandilo — China: 1.8% St Marys — China: 0.8%
Fiji 0.5% / 1.5%
Llandilo — Fiji: 0.5% St Marys — Fiji: 1.5%
Italy 1.3% / —
Llandilo — Italy: 1.3% St Marys — Italy: not among its largest
Lebanon 0.7% / —
Llandilo — Lebanon: 0.7% St Marys — Lebanon: not among its largest

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

What people live in

Occupied private dwellings by structure, 2021 Census.

Llandilo 98.5% houses
Llandilo — Houses: 98.5% Llandilo — Townhouses: 0.7% Llandilo — Flats / Apartments: 0.9%
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

Llandilo St Marys
Median house price $2,835,000 $1,050,000
Median unit price — $535,000
Median land price $2,503,000 $820,000
Typical days to sell (houses) 100 days
from 4 sales
 20 days
from 121 sales

Zoning mix

Llandilo has more rural and farming land (92% vs 0%); St Marys has more industrially zoned land (28% vs 0%).

Llandilo St Marys
Rural and farming 92% 0%
Residential 0% 38%
Industrial 0% 28%
Parks and recreation 0% 16%
Infrastructure and transport 5% 7%
Environmental 2% 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

Llandilo 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.

Llandilo St Marys
Houses — 3.7%
$600/wk on $850K
Units — 5.0%
$480/wk on $502K

Ranking within NSW

Llandilo St Marys
House price Higher than 90% of NSW Higher than 55% of NSW
Income Higher than 66% of NSW Higher than 42% of NSW
Schools — Higher than 15% of NSW
Walkability Higher than 78% of NSW Higher than 92% of NSW
Affordability Higher than 8% of NSW Higher than 37% of NSW
EV adoption Higher than 75% of NSW Higher than 62% of NSW
NBN connectivity Higher than 63% of NSW Higher than 92% of NSW
Rental yield (houses) — Higher than 54% of NSW
Rental yield (units) — Higher than 66% of NSW

Liveability

St Marys is more walkable (79 vs 38).

Llandilo St Marys
Grade C
same for both
Score 32/100 34/100
Socio-economic band mid-range socio-economic
decile 4/10
 below-average income
decile 2/10

Risk profile

Llandilo carries more bushfire risk (64 vs 19); St Marys carries more crime risk (92 vs 75).

Llandilo St Marys
Bushfire Moderate
64/100
 Low
19/100
Crime High
75/100
 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 3
within 5 km
 5
within 5 km

Schools

Llandilo St Marys
Inside the suburb 2 4
Rated above peers 0
same for both
Rated at peers 1
same for both
Rated below peers 1 2
Universities within 10 km 1
Western Sydney University - Penrith, 7.3 km
 1
Western Sydney University - Penrith, 4.4 km
Full-time students aged 15–24 1.7% 1.3%

Schools in Llandilo

  • Xavier College Catholic · Secondary at peers
  • Llandilo Public School Government · Primary below 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

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

Mobility

Llandilo sits further from the CBD (63.3 km vs 50.3 km).

Llandilo St Marys
Walkability score 38/100 79/100
Distance to Sydney 63.3 km
+21% vs other
 50.3 km
Drive time (normal traffic) 57 min 50 min
Public transport score 52/100
Bus
 79/100
Rail · Bus
Peak arrivals per hour 24.0
7-9am + 5-7pm
 417.5
7-9am + 5-7pm
Median peak wait 1 min
scheduled, not actual
 0 min
scheduled, not actual
Electric vehicle share 0.9%
postcode 2747
 0.6%
postcode 2760
Rooftop solar per 100 dwellings 45
postcode 2747
 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.

Llandilo St Marys
Car (driver) 59.2% / 60.7%
Llandilo — Car (driver): 59.2% St Marys — Car (driver): 60.7%
Worked from Home 32.2% / 25.0%
Llandilo — Worked from Home: 32.2% St Marys — Worked from Home: 25.0%
Car (passenger) 5.2% / 6.0%
Llandilo — Car (passenger): 5.2% St Marys — Car (passenger): 6.0%
Train 1.0% / 5.5%
Llandilo — Train: 1.0% St Marys — Train: 5.5%
Walked Only 2.3% / 1.3%
Llandilo — Walked Only: 2.3% St Marys — Walked Only: 1.3%

Bars are drawn against the largest share shown (60.7%).

Setting

Llandilo St Marys
Elevation 34 m
above sea level, at the suburb centre
 35 m
above sea level, at the suburb centre
Distance to the ocean 46.0 km 42.1 km

NBN connectivity

Llandilo St Marys
Connectivity score 31/100 85/100
Most common technology Fixed wireless Fibre to the curb
Full-fibre (FTTP) share 2%
531 premises
 35%
7,260 premises

Climate

Llandilo St Marys
Annual rainfall 806 mm 822 mm
Summer max (Jan) —
same for both
Winter min (Jul) —
same for both

Air quality (annual mean)

Llandilo St Marys
PM2.5 7.2 µg/m³ 5.6 µg/m³
PM10 16.3 µg/m³ 17.6 µg/m³
NO₂ 0.6 pphm 0.55 pphm

Council rates

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

Federal electorate

Llandilo St Marys
Division Lindsay
same for both
Member Melissa Mcintosh
same for both
Party Liberal
same for both

First Home Owner Grant

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

Tags

Llandilo

Acreage Outer Premium

St Marys

Multicultural Outer Parks Townhouses

More comparisons

Other comparisons with Llandilo

Llandilo vs Cranebrook Llandilo vs Jordan Springs Llandilo vs Londonderry Llandilo vs Berkshire Park Llandilo vs Shanes Park

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
Full data on Llandilo 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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