St Clair at a glance
Walk score
78
Very walkable
Population
26.4k
Median age 36
The brief
What to know about St Clair.
The postcode for St Clair is 2759 (NSW), part of Greater Sydney.
St Clair (2759) sits in the Penrith region of NSW.
St Clair has roughly 26,434 residents, with a typical family-age mix. Households are dominated by renters. Day-to-day life here is very walkable, with most errands manageable on foot.
Side by side
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Day to day
What it’s like to live here.
St Clair scores 78/100 on walkability, which makes it very walkable with limited public transport. Coffee, groceries and a meal out are mostly walking-distance, which keeps a household viable on one car.
Summer days here average around 26°C (mild), winter mornings around 8°C (mild). Annual rainfall lands at about 1302mm. Data comes from the Bureau of Meteorology's Sydney (Observatory Hill) station, 32.5km away.
Schooling within or near the suburb covers 10 government primary, 4 government secondary, 4 Catholic, 2 independent.
Who lives here
Demographics.
The 2021 Census put St Clair's population at 26,434, with a median age of 36. That sits as a typical family-age mix.
Population
26,434
Median age
36
Family households
–
Lone person
–
Market
The price of a home here.
Median house price
Verified median pending
We don't yet have a verified suburb-level median for this market. We're working on a data partner; in the meantime, treat the state-level figures as a guide only. How we source data.
Sales data as of May 2026· rental-nsw
Rental and ownership
Weekly rent (house)
$440/wk
Weekly rent (unit)
$374/wk
Owner occupied
–
Renter occupied
–
At a deeper level
26,434
Median age: 36
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Getting around
Walkability.
78
0
100
Scores calculated from OpenStreetMap data (ODbL)
Walkability data as of May 2026· OpenStreetMap
Place
Location.
Amenities
Transport
Education
Schools in St Clair.
Local schools for St Clair
View the catchment for each school to find out more.
Government School Catchment
St Clair Public School
St Clair High School
Blackwell Public School
© ACARA, licensed under CC BY 4.0.
Climate
Weather year-round.
Annual Rainfall
1302 mm
Hottest Month (avg max)
26.2°C
Coldest Month (avg min)
8.4°C
Monthly Rainfall (mm)
Weather data from BOM station Sydney (Observatory Hill) (33 km away)
Climate data as of May 2026· Bureau of Meteorology
Frequently asked
About St Clair.
- What is the St Clair postcode?
- St Clair is in the 2759 postcode, in NSW, in the Penrith City Council region.
- Where is St Clair?
- St Clair is a suburb of Sydney, in NSW 2759. It is part of the Greater Sydney area, in the Penrith City Council region.
- What is the average rent in St Clair?
- The median weekly rent for houses is $440, for units it's $374.
- What schools are in St Clair?
- There are 20 schools serving St Clair on this page, including St Clair Public School, Holy Spirit Primary School, St Clair High School.
- How walkable is St Clair?
- St Clair has a Walk Score of 78 out of 100, very walkable. transit score 0, bike score 100.
- What suburbs are near St Clair?
- St Clair is close to Colyton, Erskine Park, Oxley Park, St Marys South, St Marys.
- What is the population of St Clair?
- The population of St Clair is approximately 26,434 (2021 Census). The median age is 36.
For Sale
St Clair
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Surrounding Suburbs
Side by side
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Sources cited
Median, growth and rental data from state revenue offices and ABS. Census from ABS 2021. Climate from BoM. Hazard from Geoscience Australia. School data from ACARA. Crime from state police open data. Full methodology →
Always dated
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