Hornsby
155,484 residents (ABS estimated resident population, 30 June 2025) across 455 km², 30 suburbs. Council website: hornsby.nsw.gov.au/Home.
Council series run to July 2026.
Population
155,484
ABS estimated resident population, 30 June 2025 · +0.4% in a year
Density
342/km²
455 km² · ERP 2025 over the ABS 2024 boundary
Council-wide house median
$2.0M
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
2.8 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
30
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
- 41
- Median household income
- $2,417/week
- Median rent
- $495/week
- Median mortgage repayment
- $2,600/month
- Households renting
- 23.1%
- Average household
- 2.8 people
- Advantage and disadvantage (IRSAD)
- decile 10 of 10
- Disadvantage (IRSD)
- decile 10 of 10
Suburbs
30 suburbs where Hornsby holds most residents, plus 8 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 | 14% | $2.5MDec 2025 | – / 18% | 10 |
| Hornsby | 22,462 | All | $1.9MDec 2025 | 0% / 52% | 9 |
| Cherrybrook | 19,082 | All | $2.4MDec 2025 | 0% / 38% | 10 |
| Wahroonga | 17,853 | 27% | $3.0MDec 2025 | – / 28% | 10 |
| West Pennant Hills | 16,620 | 24% | $2.7MDec 2025 | – / 36% | 10 |
| Beecroft | 10,291 | 74% | $2.6MDec 2025 | 0% / 29% | 10 |
| Thornleigh | 8,898 | All | $1.9MDec 2025 | 0% / 44% | 10 |
| Dural (Hornsby - NSW) | 7,900 | 68% | $2.5MDec 2025 | 0% / 80% | 10 |
| Waitara | 7,837 | All | $2.5MDec 2025 | 0% / 0% | 10 |
| Mount Colah | 7,816 | All | $1.7MDec 2025 | 0% / 86% | 10 |
| Pennant Hills | 7,588 | All | $2.1MDec 2025 | 0% / 66% | 10 |
| Glenhaven | 6,619 | 5% | $2.6MDec 2025 | – / 73% | 10 |
| Hornsby Heights | 6,354 | All | $1.8MDec 2025 | 0% / 94% | 10 |
| Asquith | 6,160 | All | $1.9MDec 2025 | 0% / 51% | 10 |
| Normanhurst | 5,387 | All | $2.0MDec 2025 | 0% / 33% | 10 |
| Berowra Heights | 5,286 | All | $1.6MDec 2025 | 0% / 87% | 10 |
| Berowra | 4,762 | All | $1.6MDec 2025 | 0% / 88% | 10 |
| North Epping | 4,657 | All | $2.5MDec 2025 | 0% / 37% | 10 |
| Westleigh | 4,501 | All | $2.0MDec 2025 | 0% / 81% | 10 |
| Glenorie | 3,792 | 39% | $2.6MDec 2025 | – / 93% | 10 |
| Galston | 3,195 | All | $2.5MDec 2025 | 0% / 81% | 10 |
| Cheltenham (NSW) | 2,166 | All | $2.9MDec 2025 | 0% / 47% | 10 |
| Mount Kuring-Gai | 1,766 | All | $1.6MDec 2025 | 0% / 96% | 10 |
| Arcadia (NSW) | 1,475 | All | $3.3MDec 2025 | 0% / 82% | 10 |
| Middle Dural | 1,040 | 21% | $3.8MDec 2025 | – / 76% | 10 |
| Brooklyn (NSW) | 737 | All | $1.1MDec 2025 | 0% / 96% | 9 |
| Cowan | 631 | All | $1.3MDec 2024 | 0% / 99% | 9 |
| Maroota | 616 | 18% | $1.6MDec 2023 | – / 93% | 8 |
| Dangar Island | 313 | All | $1.1MDec 2025 | 0% / 92% | 10 |
| Fiddletown | 259 | All | $4.4MDec 2025 | 0% / 99% | 10 |
| Wisemans Ferry | 233 | 39% | $553kDec 2025 | – / 83% | 6 |
| Berrilee | 212 | All | 0% / 97% | 10 | |
| Canoelands | 177 | All | $2.0MDec 2025 | 2% / 98% | 9 |
| Berowra Waters | 169 | All | $1.3MDec 2025 | 0% / 91% | 10 |
| Laughtondale | 102 | All | $1.4MDec 2025 | 16% / 91% | 10 |
| Forest Glen (NSW) | 71 | All | 0% / 98% | 9 | |
| Milsons Passage | 32 | All | 0% / 92% | 9 | |
| Singletons Mill | 3 | All | 18% / 99% |
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
0%
Over 30 of 38 member suburbs (the rest are not mapped)
Show the layer on the map →Observed surface water (1986–present)
<1%
Over 37 of 38 member suburbs (the rest are not mapped)
Show the layer on the map →Suburb prices
Across the 26 member suburbs with their own Valuer-General median (unweighted; each suburb's latest figure, periods ending Dec 2024 to Dec 2025).
- Lowest suburb median
- $1.1M
- Median of suburb medians
- $1.9M
- Highest suburb median
- $4.4M
Recorded crime
Offences per 100,000 residents over the 22 member suburbs the source covers, financial year ending 2025. Small suburbs and unreliable rates are excluded.
- Break and enter
- 239
- per 100k · NSW 2025
- Motor vehicle theft
- 47
- per 100k · NSW 2025
- property_damage
- 503
- per 100k · NSW 2025
- Violent crime
- 827
- 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
- Berowra · Julian LEESER (LP)91%
- Mitchell · Alex HAWKE (LP)6%
- Bradfield · Nicolette BOELE (IND)3%
State districts
- Hornsby · James Wallace (LIB)57%
- Wahroonga · Alister Henskens (LIB)26%
- Epping · Monica Tudehope (LIB)10%
- Castle Hill · Mark Hodges (LIB)7%
- Hawkesbury · Robyn Preston (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.