St Agnes, SA
Suburb profile from official open data — demographics, market signals, schools and safety.
At a glance
- Population
- 4,233
- Median age
- 44
- Household income
- $1,557/wk
- Owner-occupied
- 82%
- Renting
- 17%
- Socio-economic advantage
- Decile 6/10 in SA
- Nearest emergency dept
- Modbury Hospital · 1.9 km
Sources: ABS Census 2021 & SEIFA 2021 (CC BY 4.0); distances are straight-line from the suburb's address centroid.
Current market rent
$630/wk
median of 15 new leases, Jan-Mar 2026 · houses $630 · units $490
Official state bond/rent data (CC BY), suburb level.
Community safety
252 recorded incidents in 2025 · up 47.4% vs 2024
Growth & supply · St Agnes - Ridgehaven
District population (2025)
13,531
+8% over 10 years
New homes approved (12 mths to May 2026)
100
houses 70 · other 30
ABS statistical district (SA2) containing the suburb centre (CC BY 4.0).
Check any address in St Agnes
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All figures from official open data with attribution; estimates and medians are statistical outputs, not valuations. Suburb boundaries follow ABS Suburbs and Localities (SAL) 2021.