Mosman
29,374 residents (ABS estimated resident population, 30 June 2025) across 9 km², 1 suburb. Council website: mosman.nsw.gov.au.
Council series run to July 2026.
Population
29,374
ABS estimated resident population, 30 June 2025 · +0.3% in a year
Density
3,376/km²
9 km² · ERP 2025 over the ABS 2024 boundary
Council-wide house median
$5.2M
Established-house transfers across the whole council, FY 2023-24 (ABS)
Federal grants per resident
$40
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
1
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
- 45
- Median household income
- $2,892/week
- Median rent
- $590/week
- Median mortgage repayment
- $3,870/month
- Households renting
- 33.1%
- Average household
- 2.3 people
- Advantage and disadvantage (IRSAD)
- decile 10 of 10
- Disadvantage (IRSD)
- decile 10 of 10
Suburbs
1 suburb where Mosman holds most residents. 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 |
|---|---|---|---|---|---|
| Mosman | 28,329 | All | $6.2MDec 2025 | – / 22% | 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 1 member suburb with their own Valuer-General median (unweighted; each suburb's latest figure, periods ending Dec 2025).
- Lowest suburb median
- $6.2M
- Median of suburb medians
- $6.2M
- Highest suburb median
- $6.2M
Recorded crime
Offences per 100,000 residents over the 1 member suburbs the source covers, financial year ending 2025. Small suburbs and unreliable rates are excluded.
- Break and enter
- 233
- per 100k · NSW 2025
- Motor vehicle theft
- 87
- per 100k · NSW 2025
- property_damage
- 495
- per 100k · NSW 2025
- Violent crime
- 650
- 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
- Warringah · Zali STEGGALL (IND)100%
State districts
- North Shore · Felicity Wilson (LIB)100%
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.