SuburbCheck

Thornleigh

NSW 2120 · Hornsby

8,898 (2021) → 9,208 est. (2025) · Stable

Part of the Hornsby local government area (est. 144,237 residents)

94
Overall score

Based on transport, liveability & education. Safety is scored separately below.

8,898
Population
$1.94M
Median house (2025)
100
Safety score
96
Transport score

Thornleigh is a stable suburb in Hornsby, NSW 2120, about 20km from Sydney CBD. Its median house price of $1.94M is more expensive than the NSW average. The suburb has 2 schools, a transport score of 96/100, and is about 19km inland. Thornleigh has an overall score of 94/100, based on transport, liveability and education, plus a separate residential safety score of 100/100.

20.2 km
To Sydney CBD
18.6 km
To coast
$900/wk
Median rent (house)
970 m
To nearest station

Demographics

8,898
Population
40
Median age
2.9
Avg household

Age distribution

Hornsby LGA population (est. 2025)144,237
Median household income (weekly)$2,681
vs NSW median+44.9%
Bachelor degree or higher63.5%
Born in Australia61.9%
Dwellings: house / unit / townhouse2,274 / 237 / 462

Top countries of birth: China (6.43%), India (3.66%), England (3.46%), South Korea (2.09%), Philippines (1.87%)

Top languages: Mandarin (7.19%), Cantonese (3.52%), Korean (2.87%), Arabic (2.73%), Hindi (1.62%)

Source: ABS Census 2021

Property

$1.94M+2.3%
Median house (2025)
$1.09M-1.2%
Median unit (2025)

Median price history

Median rent — house / unit$900 / $685 wk
Rental yield (house)2.4%
Days on market (house)36 days

Source: NSW Valuer General · Updated Q4 2025

Residential Safety

100
Residential

Recorded residential incidents (latest year), with rate per 100,000 residents:

8
Break & enter dwelling90/100k
7
Steal from dwelling79/100k
6
Motor vehicle theft67/100k
16
Domestic assault180/100k
2
Robbery22/100k
8
Non-domestic assault90/100k

Includes street and public-place assaults — supplementary context, not part of the safety score.

Residential incidents over time

Sum of the five residential categories above — not all recorded crime.

Area crime context

Total recorded incidents: 326 (all categories, latest year)3,664 per 100,000 residents2-yr5-yr

An independent score — crime data quality varies by state, so safety is shown separately and is not part of the overall score.

Source: BOCSAR · Updated 2025

Schools

97

Outstanding school access

Top 20% nationally — strong, high-ICSEA schools nearby with genuine choice. An excellent suburb for families prioritising education.

169
Within 10km2 in suburb
2
Govt (suburb)
0
Catholic (suburb)
0
Indep. (suburb)

Average ICSEA of schools within 10km 1120 (above the national average of 1000).

In suburb

  • Normanhurst West Public SchoolPrimary · GovernmentICSEA 1140
  • Thornleigh West Public SchoolPrimary · GovernmentICSEA 1134

Nearby (within 10km)

  • Normanhurst Public SchoolPrimary · Government · 1.4kmICSEA 1144
  • Hornsby South Public SchoolPrimary · Government · 1.7kmICSEA 1103
  • Clarke Road SchoolCombined · Government · 1.8kmICSEA 1046
  • Normanhurst Boys High SchoolSecondary · Government · 1.8kmICSEA 1193
  • Loreto NormanhurstCombined · Independent · 1.8kmICSEA 1156
  • Pennant Hills Public SchoolPrimary · Government · 1.9kmICSEA 1147
  • Barker College Junior SchoolPrimary · Independent · 2.1km
  • Pennant Hills High SchoolSecondary · Government · 2.2kmICSEA 1105
  • Our Lady Help of Christians Catholic Primary SchoolPrimary · Catholic · 2.2kmICSEA 1156
  • St Agatha's Catholic Primary SchoolPrimary · Catholic · 2.2kmICSEA 1132
  • Wahroonga Adventist SchoolCombined · Independent · 2.2kmICSEA 1151
  • St Leo's Catholic CollegeSecondary · Catholic · 2.3kmICSEA 1110

Source: ACARA 2023

Transport

96
1Train
88Bus
CBD commute (est.)48 min (train)
Peak train frequency60/hr
Nearest train stationThornleigh (970 m)

Source: TfNSW GTFS

Liveability

25.5°C
Summer max
16.5°C
Winter max
1,300mm
Rainfall/yr
7h
Sun/day

Amenities within 2–3km

Counted within a short distance of the suburb centre (so nearby facilities count), with the in-boundary count shown beneath.

143 in suburbSupermarkets
97 in suburbCafes/Rest.
3415 in suburbParks
2512 in suburbPlaygrounds
729103 in suburbPools
120 in suburbGyms
21 in suburbDog parks
100 in suburbGPs
90 in suburbPharmacies
110 in suburbChildcare
20 in suburbLibraries
21813 in suburbSports fields
41 in suburbVets
Nearest beachData not available
Nearest hospitalSydney Adventist Hospital (1.9 km)
Nearest vet380 m
Nearest airportSydney (26.2 km)

Source: Bureau of Meteorology · OpenStreetMap

Fitness

73

Plenty of options

Well above average — a good spread of gyms and sports facilities within easy reach.

12
Gyms
7
Leisure centres
1
Public pools
218
Sports fields

Facilities within 3km of the suburb centre. The Fitness Score is a national percentile of these counts per resident.

Source: OpenStreetMap

Outdoors

45

Some green space

Around the national average — a reasonable amount of parks and outdoor space nearby.

34
Parks
2
Nature reserves
7
Bike paths
1
Hiking trails
2
Dog parks
10
Picnic areas
1
Skate parks

Within 3km of the suburb centre. The Outdoor Score is a national percentile led by parks and green space.

Source: OpenStreetMap

Culture

65

Rich cultural scene

Well above average — a strong mix of cultural venues nearby.

2
Theatres
2
Cinemas
0
Museums
10
Galleries
2
Libraries
1
Arts centres
7
Landmarks

Within 3km of the suburb centre. The Culture Score is a national percentile weighting theatres, museums, galleries, libraries and arts centres most heavily.

Source: OpenStreetMap

Entertainment Scene

0

Not much nightlife

No licensed on-premises venues recorded in this suburb.

0
Licensed venues (within 2km)
0.00
Per 1,000 residents

No licensed pubs, bars or clubs are registered in this suburb per the Liquor & Gaming NSW register.

View nearby venues on the Entertainment Map →

Source: OpenStreetMap

Childcare

60

Strong options nearby

Well above average for childcare services — good choice and quality, with most families finding a place without a long drive.

4
Long Day Care
2
Preschool / Kinder
2
OSHC
Total services8
Exceeding NQS or above2 of 8 rated
Services per 1,000 residents0.90

View childcare centres on the map →

Source: ACECQA National Quality Framework Register

Population & Growth

Stable
Annual growth rate0.86%
Projected population 20419,299
Projected households 2041Data not available

Source: ABS ERP & NSW DPHI

Nearby suburbs in Hornsby

Normanhurst$2.14M96transportWestleigh$1.90M61transportPennant Hills$1.99M92transportWaitara$4.60M94transportHornsby$1.85M95transportCheltenhamData not available92transport

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Thornleigh

Frequently asked questions about Thornleigh

Is Thornleigh safe?

Thornleigh has a residential safety score of 100/100, based on residential crime (break-ins, theft from dwellings, vehicle theft, domestic assault and robbery) per resident relative to the NSW median. Its total recorded incident rate is 3,664 per 100,000 across all categories.

What are property prices in Thornleigh?

In Thornleigh, the median house price is $1.94M and the median unit price is $1.09M. Median weekly house rent is $900.

How far is Thornleigh from Sydney CBD?

Thornleigh is about 20.2 km from Sydney CBD, an estimated 48 minutes by public transport.

What schools are in Thornleigh?

Thornleigh has 2 schools, with an average ICSEA of 1137 (the national average is 1000). Schools are listed factually, not ranked.

What is public transport like in Thornleigh?

Thornleigh has a transport score of 96/100, including 1 train station and 88 bus stops.

Data sources: ABS Census 2021 & ERP, NSW Valuer General, BOCSAR, TfNSW, ACARA, Bureau of Meteorology, OpenStreetMap, NSW DPHI. Data refreshed quarterly.

Data shown is from public sources and may not reflect current conditions. How we calculate scores.