Suburb comparison
Penrith vs St Marys — which Sydney suburb suits you?
The key differences: Penrith has more schools within the postcode. The table below covers all available metrics.
Last refreshed April 2026 (most cards). Per-card sources show exact dates.
MetricPenrithSt Marys
Median house price$932K$958K▲
Median unit price$570K$636K▲
Median weekly rent$580/wk$580/wk
Annual price growth+3.8%+12.5%▲
SEIFA advantage decile3/10▲2/10
Flood zone coverage——
Bushfire zone coverage28.3%27.1%▲
Schools in postcode11▲9
Choose Penrith if...
- You want a lower entry price for a house
- Socio-economic advantage score matters to you
- School options within walking distance matter
Choose St Marys if...
- St Marys leads on 4 of the 6 head-to-head metrics
Common questions
- Is Penrith or St Marys more expensive?
- St Marys has the higher median house price ($958K) compared with $932K in Penrith.
- Which is better for renters — Penrith or St Marys?
- Median weekly rent is $580/wk in Penrith and $580/wk in St Marys, making St Marys the more affordable rental market.
- Is Penrith or St Marys at higher flood risk?
- Flood mapping coverage varies by postcode — see the flood risk pages for both suburbs for authoritative NSW data.
- How many schools are in Penrith vs St Marys?
- Penrith has 11 schools in the postcode, and St Marys has 9. Note that school catchments can extend across postcode boundaries.