Sefton
NSWSefton is a growing suburb in NSW with 6,300 residents.
- SAL code
- 13531
- SA2
- 125031479
- Population
- 6,300
Sefton, NSW had 6,300 residents at the 2021 Census, with the broader statistical area showing a 4.7% growth over the last five years. The predominant age group is 5-14 years, and the median age sits at 35. Households are most often couples with children, and those with a mortgage repay a median of $2,000 a month. Around 62.4% of homes are owner-occupied, with the largest single tenure being rented at 33.6%. Most dwellings are separate houses, making up 70.2% of the suburb's housing stock. The suburb has 2 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
?6,300
Suburb · Census 2021
5-Year Growth
+4.7%
3yr: +3.7% · 10yr: +16.6%
SA2 · 5yr
Household Income
$1,528/wk
Suburb · Census 2021 median
Median Age
35
Suburb · Census 2021
Socio-Economic Index
?1/10
SA2 · more disadvantaged
Unemployment
?11.1%
SA2 · Q4 2025
Schools
2
1 primary, 1 secondary
Hospitals
No data for this suburb
Childcare services
?6
4 long day, 1 OSHC
Parks & green space
?2
Parks, reserves
Transport stops
?48
GTFS stops
Dwelling approvals
No data for this suburb
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 — Chester Hill - Sefton (SA2)
ABS publishes annual estimates only at SA2; Sefton suburb alone is ~6,300 (Census 2021).
Source: ABS ERP (latest release · 2025) · Census 2021. Numbers refreshed quarterly.
Growth at a Glance
Population grew from 15,789 to 21,806 over 24 years, averaging 1.4% per year.
Schools
2 in suburbSector
2 public
Type
1 primary · 1 secondary
Total enrolment
1,214
Avg per school
607
Government school catchment
Intake zonePrimary
Chester Hill PS87.3%
- Birrong PS 12.1%
- Regents Park PS 0.7%
- Auburn WPS 0.0%
- Chester Hill NPS 0.0%
Secondary
Sefton HS64.2%
- Bass HS 35.8%
- Birrong BHS 23.3%
- Birrong GHS 23.3%
- Chester Hill HS 0.0%
- Granville SCPAHS 0.0%
Infants
Sefton IS
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
Public housing 5.4%Predominantly detached houses (70.2%), mixed tenure (62.4% own or mortgage), built for families (41% are 3 bed).
Dwelling mix
Tenure
NSW 33%
Number of bedrooms
Bushfire risk
This suburb falls outside every bushfire polygon mapped by the relevant authority. Always confirm at the property address — local conditions and unmapped overlays can still apply.
Overlap is the percentage of the suburb's land area inside the mapped bushfire polygons. Always verify the exact property address with the relevant authority before making decisions. Source when available: NSW Rural Fire Service (BFPL) and NSW DPHI EPI Flood.
Flood risk
This suburb falls outside every flood polygon mapped by the relevant authority. Always confirm at the property address — local conditions and unmapped overlays can still apply.
Overlap is the percentage of the suburb's land area inside the mapped flood polygons. Always verify the exact property address with the relevant authority before making decisions. Source when available: NSW Rural Fire Service (BFPL) and NSW DPHI EPI Flood.
Planning zones
7 zones in suburb| Code | Zone | % covered | Area |
|---|---|---|---|
| R2 | ZoneResidential | 59.9% | 1.09 km² |
| E4 | ZoneEnvironmental | 12.0% | 0.22 km² |
| RE1 | ZoneRecreation | 11.5% | 0.21 km² |
| SP2 | ZoneSpecial use | 6.0% | 0.11 km² |
| R3 | ZoneResidential | 5.9% | 0.11 km² |
| E1 | ZoneEnvironmental | 2.4% | 0.04 km² |
| R4 | ZoneResidential | 2.3% | 0.04 km² |
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.