The Hills
222,675 residents (ABS estimated resident population, 30 June 2025) across 386 km², 22 suburbs. Council website: thehills.nsw.gov.au/Home.
Council series run to July 2026.
Population
222,675
ABS estimated resident population, 30 June 2025 · +3.2% in a year
Density
577/km²
386 km² · ERP 2025 over the ABS 2024 boundary
Council-wide house median
$1.9M
Established-house transfers across the whole council, FY 2023-24 (ABS)
Federal grants per resident
$39
Financial Assistance Grant 2025-26 over ERP 2025
Dwelling approvals
11.6 per 1,000
Residents, 12 months to July 2026 (ABS Building Approvals)
Advantage decile
10 of 10
SEIFA 2021 IRSAD, national (10 = most advantaged)
Suburbs
22
Where it holds most residents (ABS mesh-block allocation)
Trends
Council-level series. Each chart names its source and period.
People and housing
Council-wide figures from the ABS Census of 2021 and SEIFA 2021 (national deciles, 10 = most advantaged).
- Median age
- 38
- Median household income
- $2,831/week
- Median rent
- $580/week
- Median mortgage repayment
- $3,000/month
- Households renting
- 20.4%
- Average household
- 3.1 people
- Advantage and disadvantage (IRSAD)
- decile 10 of 10
- Disadvantage (IRSD)
- decile 10 of 10
Suburbs
22 suburbs where The Hills holds most residents, plus 5 it shares with a neighbouring council (share of residents shown). Population is Census 2021 for the whole suburb. A median here is the suburb’s own Valuer-General median — suburbs without one are blank, never filled with the council figure.
| Suburb | Population | In this council | Median house (VG) | Flood / bushfire | IRSAD |
|---|---|---|---|---|---|
| Castle Hill (NSW) | 40,874 | 86% | $2.5MDec 2025 | – / 18% | 10 |
| Baulkham Hills | 37,415 | 97% | $1.9MDec 2025 | – / 12% | 10 |
| Kellyville | 27,011 | All | $1.9MDec 2025 | – / 9% | 10 |
| North Kellyville | 17,401 | All | $1.8MDec 2025 | 4% / 50% | 10 |
| West Pennant Hills | 16,620 | 76% | $2.7MDec 2025 | – / 36% | 10 |
| Rouse Hill | 11,349 | 76% | $1.3MDec 2025 | 3% / 48% | 10 |
| North Rocks | 9,136 | 6% | $1.9MDec 2025 | – / 48% | 10 |
| Beaumont Hills | 9,041 | All | $1.9MDec 2025 | – / 32% | 10 |
| Bella Vista | 8,384 | All | $2.6MDec 2025 | – / 0% | 10 |
| Dural (Hornsby - NSW) | 7,900 | 32% | $2.5MDec 2025 | 0% / 80% | 10 |
| Glenhaven | 6,619 | 95% | $2.6MDec 2025 | – / 73% | 10 |
| Box Hill (NSW) | 6,450 | All | $1.3MDec 2025 | 20% / 20% | 10 |
| Kenthurst | 5,313 | All | $3.4MDec 2025 | – / 92% | 10 |
| Norwest | 4,688 | All | $2.1MDec 2025 | – / 0% | 10 |
| Glenorie | 3,792 | 61% | $2.6MDec 2025 | – / 93% | 10 |
| Gables | 3,339 | All | $1.3MDec 2025 | – / 42% | 10 |
| Annangrove | 1,472 | All | $3.6MDec 2025 | – / 94% | 10 |
| Maraylya | 1,281 | 33% | $2.1MDec 2025 | – / 100% | 10 |
| Cattai | 1,077 | 52% | $2.5MDec 2025 | – / 95% | 10 |
| Middle Dural | 1,040 | 79% | $3.8MDec 2025 | – / 76% | 10 |
| Lower Portland | 711 | 41% | $1.5MDec 2025 | – / 97% | 8 |
| Maroota | 616 | 82% | $1.6MDec 2023 | – / 93% | 8 |
| South Maroota | 613 | All | $1.6MDec 2025 | – / 99% | 9 |
| Nelson (The Hills Shire - NSW) | 460 | All | $4.0MDec 2025 | – / 99% | 9 |
| Sackville North | 388 | All | $1.5MDec 2025 | – / 95% | 9 |
| Wisemans Ferry | 233 | 40% | $553kDec 2025 | – / 83% | 6 |
| Leets Vale | 59 | 33% | – / 96% | 7 |
Hazards
Share of each member suburb's land inside the mapped layer, averaged across the council weighted by the residents each suburb contributes. Only suburbs a source covers count; the rest are left out, not counted as zero.
Flood planning land
6%
Over 4 of 27 member suburbs (the rest are not mapped)
Show the layer on the map →Suburb prices
Across the 22 member suburbs with their own Valuer-General median (unweighted; each suburb's latest figure, periods ending Dec 2023 to Dec 2025).
- Lowest suburb median
- $553k
- Median of suburb medians
- $2.0M
- Highest suburb median
- $4.0M
Recorded crime
Offences per 100,000 residents over the 16 member suburbs the source covers, financial year ending 2025. Small suburbs and unreliable rates are excluded.
- Break and enter
- 287
- per 100k · NSW 2025
- Motor vehicle theft
- 73
- per 100k · NSW 2025
- property_damage
- 448
- per 100k · NSW 2025
- Violent crime
- 809
- per 100k · NSW 2025
Representation
Federal electorates and state districts covering the council, by share of the residents its suburbs contribute (each suburb counts once, for the seat containing a representative interior point).
Federal electorates
- Mitchell · Alex HAWKE (LP)79%
- Berowra · Julian LEESER (LP)11%
- Greenway · Michelle ROWLAND (ALP)10%
- Macquarie · Susan TEMPLEMAN (ALP)1%
State districts
- Castle Hill · Mark Hodges (LIB)51%
- Kellyville · Ray Williams (LIB)35%
- Hawkesbury · Robyn Preston (LIB)8%
- Riverstone · Warren Kirby (ALP)5%
- Hornsby · James Wallace (LIB)1%
- Epping · Monica Tudehope (LIB)1%
Neighbouring councils
Councils in the same state whose suburbs share a boundary with this one's, and councils it splits a suburb with.
Compare it with every New South Wales council on the council map or the New South Wales council list.
Boundaries: ABS ASGS Edition 3, LGA 2024 boundaries; suburbs allocated by 2021 mesh block, weighted by Census 2021 residents. Population: ABS estimated resident population 2025. Census 2021 and SEIFA 2021: ABS. Council-wide medians: ABS Data by Region. Approvals: ABS Building Approvals. Grants: Financial Assistance Grants, Dept of Infrastructure. Suburb prices: state Valuer-General. Flood and bushfire: state planning layers. Observed water: Geoscience Australia DEA Water Observations. Crime: state police statistics. Website and identity: Wikidata (CC0). ABS, Dept of Infrastructure and state government data CC BY 4.0. Council facts loaded 2026-09-24.