St Clair (Penrith - NSW)
NSWSt Clair (Penrith - NSW) is a stable suburb in NSW with 19,942 residents.
- SAL code
- 13647
- SA2
- 124051470
- Population
- 19,942
- LGA
- Penrith
St Clair (Penrith - NSW), NSW had 19,942 residents at the 2021 Census, with the broader statistical area showing a 1.3% 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 $2,167 a month. Around 76.6% of homes are owner-occupied, with the largest single tenure being owned with a mortgage at 46.1%. Most dwellings are separate houses, making up 98.5% of the suburb's housing stock. The suburb has 44 parks and reserves mapped within its boundary. Source: ABS Census 2021 and Estimated Resident Population, with amenity counts from state Open Data and OpenStreetMap.
Suburb analysis
St Clair (Penrith - NSW), NSW at a glance
St Clair is a master-planned residential suburb ~44 km west of Sydney CBD in the City of Penrith, built out from a 1970s land-release on former farmland between Mt Druitt and St Marys. The street layout is loop-and-cul-de-sac, the housing is mostly single-storey brick veneer from the 1980s on standard lots, and the population skews to couples with children. The data tiles below cover the demographic baseline; this card adds the live market + lifestyle + council context.
For homebuyers
St Clair is settled, suburban Western Sydney — wide streets, low fences, walking tracks linking the reserves, and a noticeably tight neighbour-to-neighbour culture in the local reviews. Housing is dominated by 3- and 4-bedroom detached homes from the original 1980s release, with steady infill renovation rather than knock-down-rebuild. The St Clair Shopping Centre on Bennett Road (Woolworths, medical centre, library) is the everyday hub; Westfield Mt Druitt is ~5 minutes east. There's no train station in the suburb itself — St Marys (T1 line, future Metro West interchange) is ~6 km north and Mt Druitt is ~5 km east. The M4 entry at Mamre Road sits about 2 km away, which is the real reason the suburb works for commuters. Schools include St Clair High School on Endeavour Avenue plus Banks, Blackwell, Clairgate and St Clair public primaries; Holy Spirit Catholic and Emmaus Catholic College cover the non-government side. In short: an established, low-key family suburb with M4 access and the St Marys Metro upgrade landing on its doorstep.
For investors
St Clair is a capital-growth, low-yield Western Sydney play. Median house sale $1,160,000 against $680/week rent gives a ~3.29% gross yield (units ~3.50% on $930k / $540) per Your Investment Property (January 2026). 12-month house growth +11.40%; quarterly +2.65%. 223 house sales and 9 unit sales in 12 months, with houses moving in ~10 days. htag.com.au (Feb 2026) flags inventory at ~0.76 months and stock-on-market at 0.18% — a very tight resale book.
Strengths
- Sustained double-digit capital growth (~+11.4% YoY houses, Your Investment Property Jan 2026).
- Very tight resale market — 10 days on market and ~0.76 months of inventory (htag Feb 2026).
- Long-hold owner-occupier base (couples with children dominant) underpins tenant stability.
- M4 / M7 access at ~2 km plus the upcoming Metro West interchange at Parramatta lifts the commute envelope without requiring an in-suburb station.
Trade-offs
- Yields are thin — ~3.29% gross houses, ~3.50% units (Your Investment Property Jan 2026); not a cashflow market.
- Affordability is stretched at ~$1.16 m median against Western Sydney wages — sensitive to interest-rate moves.
- No dedicated train station; closest heavy rail is St Marys / Mt Druitt at 5-6 km, which caps walk-up tenant demand.
- Limited stratified stock (just 9 unit sales in the last 12 months) means few entry points below the house median.
What's coming
Penrith City Council's 2025-29 Delivery Program funds an ongoing playspace upgrade rotation; Banks Drive Playground has been completed and Dorothy Radford Reserve is mid-construction with a 2026 finish (Your Say Penrith). The bigger external lever is the Sydney Metro West / St Marys station upgrade ~6 km north, which the council's strategic plan ties its St Marys / Mt Druitt corridor settings to.
Bottom line
For homebuyers: an established, family-stable suburb with the M4 close and the St Marys Metro upgrade on the horizon. For investors: a long-hold capital-growth Western Sydney play, not a yield one.
Population
?19,942
Suburb · Census 2021
5-Year Growth
+1.3%
3yr: +2.5% · 10yr: +0.0%
SA2 · 5yr
Household Income
$2,067/wk
Suburb · Census 2021 median
Median Age
36
Suburb · Census 2021
Socio-Economic Index
?5/10
SA2 · middle-range
Unemployment
?3.2%
SA2 · Q4 2025
Hospitals
No data for this suburb
Childcare services
?15
8 long day, 7 OSHC
Parks & green space
?44
Parks, reserves
Transport stops
?77
GTFS stops
Dwelling approvals
?270
Penrith · 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)
Population over time — St Clair (SA2)
ABS publishes annual estimates only at SA2; St Clair (Penrith - NSW) suburb alone is ~19,942 (Census 2021).
Source: ABS ERP (latest release · 2025) · Census 2021. Numbers refreshed quarterly.
Growth at a Glance
Population grew from 21,498 to 20,529 over 24 years, averaging -0.2% per year.
Schools
5 in suburbSector
5 public
Type
4 primary · 1 secondary
Total enrolment
2,347
Avg per school
469
Government school catchment
Intake zonePrimary
Banks PS26.6%
- Blackwell PS 26.3%
- Clairgate PS 25.2%
- St Clair PS 21.2%
- Bennett Rd PS 0.5%
- James Erskine PS 0.2%
- St Marys SPS 0.1%
- Orchard Hls PS 0.0%
Secondary
St Clair HS73.6%
- Erskine Park HS 25.8%
- Colyton HS 0.6%
- Kingswood HS 0.0%
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 0.7%Almost entirely detached houses (98.5%), owner-occupied (76.6%), built for families (51% are 3 bed).
Dwelling mix
Tenure
NSW 33%
Number of bedrooms
Bushfire risk
Source: NSW RFS BFPL via SEED
As of May 2026
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.
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
5 zones in suburb| Code | Zone | % covered | Area |
|---|---|---|---|
| R2 | ZoneResidential | 80.3% | 5.79 km² |
| RE1 | ZoneRecreation | 13.1% | 0.94 km² |
| SP2 | ZoneSpecial use | 5.7% | 0.41 km² |
| E1 | ZoneEnvironmental | 0.7% | 0.05 km² |
| E3 | ZoneEnvironmental | 0.2% | 0.02 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.