Collaroy Plateau
NSWCollaroy Plateau is a declining suburb in NSW with 4,805 residents.
- SAL code
- 10971
- SA2
- 122031693
- Population
- 4,805
- LGA
- Northern Beaches
Collaroy Plateau, NSW had 4,805 residents at the 2021 Census, with the broader statistical area roughly steady over the last five years. The predominant age group is 45-54 years, and the median age sits at 40. Households are most often couples with children, and those with a mortgage repay a median of $3,467 a month. Around 87.2% of homes are owner-occupied, with the largest single tenure being owned with a mortgage at 49.0%. Most dwellings are separate houses, making up 94.9% of the suburb's housing stock. The suburb has 5 parks and reserves mapped within its boundary. Source: ABS Census 2021 and Estimated Resident Population, with amenity counts from state Open Data and OpenStreetMap.
Population
?4,805
Suburb · Census 2021
5-Year Growth
-0.2%
3yr: +2.9% · 10yr: +0.5%
SA2 · 5yr
Household Income
$3,278/wk
Suburb · Census 2021 median
Median Age
40
Suburb · Census 2021
Socio-Economic Index
?10/10
SA2 · least disadvantaged
Unemployment
?4.1%
SA4 · Q4 2025
Schools
2
2 primary
Hospitals
No data for this suburb
Childcare services
?7
3 long day, 3 OSHC
Parks & green space
?5
Parks, reserves
Transport stops
?33
GTFS stops
Dwelling approvals
?32
Northern Beaches · Feb 2026
Median Weekly Rent
Based on NSW rental bond lodgements, aggregated at postcode level. All SALs sharing this postcode show the same median.
Median House Sale Price
Source: state Valuer-General (suburb-level quarterly medians).
→ Calculate stamp duty on this suburb's median price→ Estimate mortgage repayments→ Calculate rental yield (price + median rent)
Safety & Crime
2025 Q4Reported incidents from NSW police. Offence rates may not reflect all crime.
Population over time — Collaroy - Collaroy Plateau (SA2)
ABS publishes annual estimates only at SA2; Collaroy Plateau suburb alone is ~4,805 (Census 2021).
Growth at a Glance
Population grew from 12,409 to 14,229 over 24 years, averaging 0.6% per year.
Schools
2 in suburbGovernment school catchment
Intake zonePrimary
Collaroy Plateau PS73.5%
- Wheeler Hts PS 47.8%
- Narrabeen Lakes PS 1.9%
- Cromer PS 0.2%
Secondary
NBSC Cromer97.6%
- Narrabeen Sp HS 2.4%
Source: NSW Department of Education — School Intake Zones. Boundaries can be amended without notice; confirm with the school before relying on enrolment.
Profile
Census snapshot
Housing
Almost entirely detached houses (94.9%), owner-occupied (87%), built for families (41% are 4 bed).
Dwelling mix
Tenure
Number of bedrooms
Bushfire & flood risk
Hazard data is not yet available for NSW.
Source when available: NSW Rural Fire Service (BFPL) and NSW DPHI EPI Flood.
Planning zones
3 zones in suburb| Code | Zone | % covered | Area |
|---|---|---|---|
| R2 | ZoneResidential | 94.5% | 1.15 km² |
| RE1 | ZoneRecreation | 5.0% | 0.06 km² |
| E1 | ZoneEnvironmental | 0.4% | 5,185 m² |
Source: NSW DPHI EPI Land Zoning (ZONE_NSW/2026-04-29/1eccf1a530fa1be5) · As of Apr 2026. Zone boundaries are amended periodically; verify the exact property with the relevant council before relying on permitted use.