Sydenham (NSW)
NSWSydenham (NSW) is a growing suburb in NSW with 1,100 residents.
- SAL code
- 13729
- SA2
- 117021328
- Population
- 1,100
Sydenham (NSW), NSW had 1,100 residents at the 2021 Census, with the broader statistical area showing a 7.4% growth over the last five years. The predominant age group is 25-34 years, and the median age sits at 36. Households are most often couples with children, and those with a mortgage repay a median of $2,817 a month. Around 62.2% of homes are owner-occupied, with the largest single tenure being rented at 37.8%. Most dwellings are townhouses or semi-detached homes, making up 57.0% of the suburb's housing stock. The suburb has 6 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
?1,100
Suburb · Census 2021
5-Year Growth
+7.4%
3yr: +6.7% · 10yr: +10.6%
SA2 · 5yr
Household Income
$2,245/wk
Suburb · Census 2021 median
Median Age
36
Suburb · Census 2021
Socio-Economic Index
?8/10
SA2 · least disadvantaged
Unemployment
?4.2%
SA4 · Q4 2025
Hospitals
No data for this suburb
Childcare services
No data for this suburb
Parks & green space
?6
Parks, reserves
Transport stops
?18
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)
Population over time — Sydenham - Tempe - St Peters (SA2)
ABS publishes annual estimates only at SA2; Sydenham (NSW) suburb alone is ~1,100 (Census 2021).
Growth at a Glance
Population grew from 6,731 to 8,976 over 24 years, averaging 1.2% per year.
Government school catchment
Intake zonePrimary
St Peters PS51.4%
- Tempe PS 44.7%
- Marrickville PS 3.9%
Secondary
Tempe HS79.8%
- Alexandria Park CS 11.8%
- Marrickville HS 8.4%
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
Predominantly townhouses (57%), mixed tenure (62% own or mortgage).
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
7 zones in suburb| Code | Zone | % covered | Area |
|---|---|---|---|
| R2 | ZoneResidential | 47.3% | 0.13 km² |
| SP2 | ZoneSpecial use | 19.1% | 0.05 km² |
| RE1 | ZoneRecreation | 18.4% | 0.05 km² |
| E4 | ZoneEnvironmental | 5.9% | 0.02 km² |
| E1 | ZoneEnvironmental | 5.0% | 0.01 km² |
| E3 | ZoneEnvironmental | 4.0% | 0.01 km² |
| R3 | ZoneResidential | 0.3% | 923 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.