The Hills Shire

New South Wales · Sydney - Baulkham Hills and Hawkesbury · 203,118 people · 21 suburbs · 11 postcodes

The Hills Shire at a glance

203,118

Population

#14 of 130 in NSW

371

km² area

547/km² density

39.2

Median age

-0.5 vs NSW

1134

SEIFA IRSAD

#9 of 130 in NSW

Schools

34 gov, 10 Cath, 9 indep

40.6%

Born overseas

21.8%

Renting

Map shows the The Hills Shire LGA boundary in blue with a marker per suburb. Hover for suburb name, click for details.

Marker colour reflects SEIFA IRSAD decile: ● 1-2 (most disadvantaged), ● 3-4, ● 5-6, ● 7-8, ● 9-10 (most advantaged).

Boundary source: ABS ASGS 2021. Map tiles: OpenStreetMap contributors.

Federal electorate boundaries can be toggled on the map. Boundary source: ABS ASGS 2021 CED boundaries.

The Hills Shire is a metropolitan Local Government Area in New South Wales, in the Sydney region. It covers 21 suburbs across 11 postcodes and an area of 371 km². The Hills Shire has a population of 203,118 , ranking #14 most populous in NSW. The most populous suburb is Castle Hill (40,874 residents).About 40.6% of residents were born overseas and 39.0% speak a language other than English at home.

Who lives here

Age structure

21.0%

12.7%

26.2%

24.9%

15.2%

0–14 (21.0%) 15–24 (12.7%) 25–44 (26.2%) 45–64 (24.9%) 65+ (15.2%)

Show counts

0–14 years	42,636 (21.0%)
15–24 years	25,838 (12.7%)
25–44 years	53,212 (26.2%)
45–64 years	50,536 (24.9%)
65+ years	30,913 (15.2%)

40.6%

Born overseas

39.0%

Speak a language other than English at home

0.6%

First Nations

3.1

Avg household size

How they live

Housing tenure

31.4%

46.8%

21.8%

Owned outright (31.4%) Mortgaged (46.8%) Renting (21.8%)

Dwelling type mix

84.8%

Separate house (84.8%) Semi/townhouse (7.9%) Flat/apartment (7.3%)

$582

Median weekly rent

$2,960

Median monthly mortgage

32.2%

Households with 0-1 cars

67.8%

Households with 2+ cars

Work and learning

4.1%

Unemployment rate

62,416

In full-time work

28,786

In part-time work

Schools in The Hills Shire

53 schools across The Hills Shire: 64.2% Government, 18.9% Catholic, 17.0% Independent. The NSW average is 69.6% / 16.9% / 13.5%. Schools here have a median ICSEA of 1114 (range 946 to 1203). NSW median is 1005; national mean is 1000.

Sector mix

64.2%

18.9%

17.0%

NSW average for comparison

69.6%

16.9%

13.5%

Government Catholic Independent

Type breakdown

64.2%

18.9%

11.3%

Primary (64.2%) Secondary (18.9%) Combined (11.3%) Special (5.7%)

ICSEA range

700 National mean 1000 1300

LGA median 1114 NSW median 1005LGA range 946 to 1203

ICSEA (Index of Community Socio-Educational Advantage) summarises the socio-economic background of each school's families. Higher values indicate more advantage. Source: ACARA 2025.

All 53 schools in The Hills Shire, sorted by enrolment:

School	Sector	Type	Suburb	Students	ICSEA
Oakhill College	Independent	Secondary	Castle Hill	2,242	1124
William Clarke College	Independent	Combined	Kellyville	1,951	1162
Castle Hill High School	Government	Secondary	Castle Hill	1,845	1121
Rouse Hill Anglican College	Independent	Combined	Rouse Hill	1,578	1137
Rouse Hill High School	Government	Secondary	Rouse Hill	1,316	1067
Gilroy Catholic College	Catholic	Secondary	Castle Hill	1,307	1096
Matthew Pearce Public School	Government	Primary	Baulkham Hills	1,270	1177
Baulkham Hills High School	Government	Secondary	Baulkham Hills	1,223	1203
The Hills Grammar School	Independent	Combined	Kenthurst	1,208	1164
Bella Vista Public School	Government	Primary	Bella Vista	1,104	1147
North Kellyville Public School	Government	Primary	North Kellyville	1,068	1112
Rouse Hill Public School	Government	Primary	Rouse Hill	1,058	1093
Marian Catholic College	Catholic	Secondary	Kenthurst	1,035	1073
Crestwood High School	Government	Secondary	Baulkham Hills	1,022	1103
Model Farms High School	Government	Secondary	Baulkham Hills	1,021	1073
Santa Sophia Catholic College (Secondary)	Catholic	Secondary	Gables	999	1078
Castle Hill Public School	Government	Primary	Castle Hill	970	1128
Santa Sophia Catholic College (Primary)	Catholic	Primary	Gables	884	1104
Baulkham Hills North Public School	Government	Primary	Baulkham Hills	876	1130
Kellyville High School	Government	Secondary	Kellyville	869	1086
Kellyville Public School	Government	Primary	Kellyville	855	1136
Hills Adventist College	Independent	Combined	North Kellyville	823	1150
Jasper Road Public School	Government	Primary	Baulkham Hills	803	1132
Oakhill Drive Public School	Government	Primary	Castle Hill	756	1152
Ironbark Ridge Public School	Government	Primary	Rouse Hill	754	1156
Australian International Academy, Kellyville Campus	Independent	Combined	North Kellyville	733	1122
St Michael's Primary School	Catholic	Primary	Baulkham Hills	696	1113
Samuel Gilbert Public School	Government	Primary	Castle Hill	643	1128
Crestwood Public School	Government	Primary	Baulkham Hills	633	1139
Our Lady of The Rosary Primary School	Catholic	Primary	Kellyville	627	1116
St Angela's Primary School	Catholic	Primary	Castle Hill	618	1126
Our Lady of the Angels Primary School	Catholic	Primary	Kellyville	600	1105
Sherwood Ridge Public School	Government	Primary	Kellyville	584	1114
Excelsior Public School	Government	Primary	Castle Hill	561	1150
West Pennant Hills Public School	Government	Primary	West Pennant Hills	510	1134
St Bernadette's Primary School	Catholic	Primary	Castle Hill	479	1145
Beaumont Hills Public School	Government	Primary	Beaumont Hills	466	1107
St Madeleine's Primary School	Catholic	Primary	Kenthurst	388	1064
Glenorie Public School	Government	Primary	Glenorie	283	1055
Box Hill Public School	Government	Primary	Box Hill	271	1123
Glenhaven Public School	Government	Primary	Glenhaven	240	1108
St Gabriel's School for students with special needs	Independent	Special	Castle Hill	207	1069
Kenthurst Public School	Government	Primary	Kenthurst	187	1040
Annangrove Public School	Government	Primary	Annangrove	142	1096
Tallawong Public School	Government	Primary	Rouse Hill	121	1083
Tallowood School	Government	Special	Kellyville	98	1034
Wisemans Ferry Public School	Government	Primary	Wisemans Ferry	44	946
Maroota Public School	Government	Primary	Maroota	31	950
Middle Dural Public School	Government	Primary	Middle Dural	31	1007
Hillside Public School	Government	Primary	Glenorie	25	1041
Woodbury	Independent	Special	Baulkham Hills	22	1112
Hills Montessori School	Independent	Primary	West Pennant Hills	16	1141
Brewongle Environmental Education Centre	Government	Combined	Sackville North

Source: ACARA School Profiles 2025. ICSEA shown where reported; some schools (notably small primaries) do not publish ICSEA.

SEIFA socio-economic indexes

SEIFA 2021 ranks Australian areas across four dimensions. Scores are population-weighted averages of suburb-level SEIFA scores within The Hills Shire. Higher scores indicate more advantage; the national mean is 1000.

IRSAD

Relative socio-economic advantage and disadvantage

1134

Ranked #9 of 130 NSW LGAs

IRSD

Relative disadvantage only (lower = more disadvantaged)

1096

IER

Economic resources: income, wealth, housing

1128

IEO

Education and occupation: qualifications, skill levels

1111

Suburbs in The Hills Shire

The Hills Shire contains 21 suburbs and 11 postcodes. Sorted by population.

Suburb	Postcode	Population	Median income	Median age
Castle Hill	2154	40,874	$2,551/wk	42
Baulkham Hills	2153	37,415	$2,474/wk	39
Kellyville	2155	27,011	$3,044/wk	38
North Kellyville	2155	17,401	$3,120/wk	33
West Pennant Hills	2125	16,620	$3,078/wk	43
Rouse Hill	2155	11,349	$2,643/wk	34
Beaumont Hills	2155	9,041	$3,308/wk	38
Bella Vista	2153	8,384	$3,518/wk	40
Glenhaven	2156	6,619	$2,532/wk	48
Box Hill	2765	6,450	$2,881/wk	31
Kenthurst	2156	5,313	$3,061/wk	44
Norwest	2153	4,688	$2,207/wk	37
Glenorie	2157	3,792	$2,524/wk	42
Gables	2765	3,339	$3,219/wk	32
Annangrove	2156	1,472	$2,650/wk	44
Middle Dural	2158	1,040	$3,067/wk	46
Maroota	2756	616	$2,079/wk	41
South Maroota	2756	613	$2,424/wk	41
Nelson	2550	460	$2,399/wk	47
Sackville North	2756	388	$2,833/wk	41
Wisemans Ferry	2775	233	$1,361/wk	50

Postcodes covered

2125, 2153, 2154, 2155, 2156, 2157, 2158, 2550, 2756, 2765, 2775

Compare The Hills Shire with neighbouring LGAs

Side-by-side demographic and socio-economic snapshot of The Hills Shire and its closest neighbouring LGAs.

LGA	Population	Median age	SEIFA IRSAD	% renting	% overseas-born
The Hills Shire (NSW)	203,118	39.2	1134	21.8%	40.6%
Blacktown	388,861	34.5	1005	34.8%	44.3%
Hawkesbury	68,064	39.1	1009	24.6%	13.2%
Hornsby	140,289	41.3	1117	24.1%	40.7%
Parramatta	250,309	36.1	1068	47.6%	53.2%
Bega Valley	35,709	51.5	948	21.5%	12.2%

Services and amenities

NDIS Providers NDIS provider directory for The Hills Shire Climate & weather Climate data for Castle Hill

Frequently asked questions about The Hills Shire

What is the population of The Hills Shire?

The 2021 Census recorded 203,118 people living in The Hills Shire, across 21 suburbs.

What suburbs are in The Hills Shire?

The Hills Shire contains 21 suburbs. The most populous are Castle Hill, Baulkham Hills, Kellyville, North Kellyville, West Pennant Hills.See the full list in the Suburbs section above.

What postcodes are in The Hills Shire?

The Hills Shire covers 11 postcodes: 2125, 2153, 2154, 2155, 2156, 2157, 2158, 2550, 2756, 2765, 2775.

How many schools are in The Hills Shire?

The Hills Shire has 53 schools, including 34 government, 10 Catholic, and 9 independent schools (ACARA 2025).

What is the SEIFA score for The Hills Shire?

The Hills Shire has a population-weighted SEIFA IRSAD score of 1134, where the national average is 1000. Higher scores indicate more relative advantage.

Page last reviewed June 2026. Data sources: Australian Bureau of Statistics 2021 Census (CC BY 4.0), SEIFA 2021 (IRSD, IRSAD, IER, IEO), ACARA School Profiles 2025, ABS ASGS 2021 LGA boundaries. How this data is sourced.