St Marys - North St Marys

NSW

St Marys - North St Marys is a growing region in NSW with 18,757 residents.

SA2 code: 124051581
State: NSW

Population

18,757

Estimated 2025

5-Year Growth

+7.6%

3yr: +5.9% · 10yr: +15.8%

5-year growth

Median Rent

$360/wk

Census 2021

Median Income

$1,395/wk

Household, Census 2021

Population over time — St Marys - North St Marys (SA2)

Source: ABS ERP (latest release · 2025) · Census 2021. Numbers refreshed quarterly.

Growth at a Glance

3yr: +5.9%5yr: +7.6%10yr: +15.8%Total: +40.0%

Population grew from 13,398 to 18,757 over 24 years, averaging 1.4% per year.

Demand & supply signals

Derived signals haven't been computed for this region yet.

Roadmap signals

Two more derived metrics are defined in the platform and waiting on upstream-data orchestration. Each will populate here once its source series is wired through.

Affordability trend

Coming soon

RPPI year-on-year divided by WPI year-on-year. Above 1.0 means home prices are outpacing wages; below 1.0 means wages are catching up.

Awaiting: ABS RPPI (6432.0) + WPI (6345.0) GCCSA-grain orchestration.

Rent–price momentum spread

Coming soon

CPI rents year-on-year minus RPPI year-on-year. Positive means rents are gaining on prices; negative means prices are running ahead of rents.

Awaiting: ABS CPI rents component + RPPI orchestration.

Profile

Census snapshot

ABS · 2021

Housing

Public housing 7.7%

Predominantly detached houses (61.3%), rental-heavy (52.9% renting), built for families (51% are 3 bed).

Dwelling mix

Houses 61.3%

Townhouses 23.9%

3,717 houses1,451 townhouses894 apartments

Tenure

Owned 18.6%

Mortgage 25.5%

Renting 52.9%

Owned 18.6%Mortgage 25.5%Renting 52.9%Other / NS 2.9%

Number of bedrooms

1 bed

228 (3.9%)

2 bed

1,455 (24.6%)

3 bed

3,010 (50.8%)

4 bed

988 (16.7%)

5 bed

187 (3.2%)

6+ bed

52 (0.9%)