Willoughby
80,520 residents (ABS estimated resident population, 30 June 2025) across 22 km², 11 suburbs. Council website: willoughby.nsw.gov.au/Home.
Council series run to July 2026.
Population
80,520
ABS estimated resident population, 30 June 2025 · +1.0% in a year
Density
3,595/km²
22 km² · ERP 2025 over the ABS 2024 boundary
Council-wide house median
$3.6M
Established-house transfers across the whole council, FY 2023-24 (ABS)
Federal grants per resident
$36
Financial Assistance Grant 2025-26 over ERP 2025
Dwelling approvals
3.2 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
11
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
- 39
- Median household income
- $2,556/week
- Median rent
- $571/week
- Median mortgage repayment
- $3,299/month
- Households renting
- 38.4%
- Average household
- 2.6 people
- Advantage and disadvantage (IRSAD)
- decile 10 of 10
- Disadvantage (IRSD)
- decile 10 of 10
Suburbs
11 suburbs where Willoughby holds most residents, plus 3 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 |
|---|---|---|---|---|---|
| Chatswood | 25,553 | All | $3.4MDec 2025 | – / 13% | 10 |
| Lane Cove North | 11,773 | 21% | $2.9MDec 2025 | – / 32% | 10 |
| Roseville | 10,340 | 22% | $4.0MDec 2025 | – / 11% | 10 |
| Artarmon | 9,417 | All | $3.7MDec 2025 | – / 4% | 10 |
| St Leonards (NSW) | 7,212 | 29% | $3.2MDec 2025 | – / 0% | 10 |
| Willoughby (NSW) | 7,124 | All | $3.7MDec 2025 | – / 4% | 10 |
| Northbridge (NSW) | 6,493 | All | $5.3MDec 2025 | – / 30% | 10 |
| Naremburn | 5,924 | All | $3.1MDec 2025 | – / 6% | 10 |
| North Willoughby | 4,161 | All | $3.7MDec 2025 | – / 0% | 10 |
| Castlecrag | 2,965 | All | $4.8MDec 2025 | – / 43% | 10 |
| Castle Cove | 2,643 | All | $4.0MDec 2025 | – / 72% | 10 |
| Willoughby East | 1,864 | All | $4.2MDec 2025 | – / 0% | 10 |
| Chatswood West | 1,521 | 78% | $2.5MDec 2025 | – / 69% | 10 |
| Middle Cove | 1,327 | All | $3.4MDec 2025 | – / 56% | 10 |
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.
Suburb prices
Across the 11 member suburbs with their own Valuer-General median (unweighted; each suburb's latest figure, periods ending Dec 2025).
- Lowest suburb median
- $2.5M
- Median of suburb medians
- $3.7M
- Highest suburb median
- $5.3M
Recorded crime
Offences per 100,000 residents over the 11 member suburbs the source covers, financial year ending 2025. Small suburbs and unreliable rates are excluded.
- Break and enter
- 345
- per 100k · NSW 2025
- Motor vehicle theft
- 67
- per 100k · NSW 2025
- property_damage
- 564
- per 100k · NSW 2025
- Violent crime
- 1,049
- 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
- Bradfield · Nicolette BOELE (IND)95%
- Bennelong · Jerome LAXALE (ALP)5%
State districts
- Willoughby · Tim James (LIB)94%
- Lane Cove · Anthony Roberts (LIB)3%
- Davidson · Matt Cross (LIB)3%
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.