Aged care homes in St Marys, NSW
Compare 2 residential aged care homes in St Marys, part of the Nepean planning region. Average overall Star Rating is 4★ — above the national average (3.1★). Ratings are from the official February 2026 Department of Health Star Ratings release.
St Marys, located within the Nepean Aged Care Planning Region, currently hosts two residential aged care facilities for local seniors. These homes maintain an average Star Rating of 4 out of 5, reflecting the quality of care provided in the area. Boronia House, operated by Thompson Health Care Pty Ltd, stands as the highest-rated facility in St Marys, currently holding a 4-star rating under the federal government’s quality assessment system.
Rating distribution
avg 4★ · 2 homesProvider mix in St Marys
2 organisations operate homes in this suburb.
What to look for in St Marys
- All homes in St Marys score 3★ or higher on compliance — a positive sign on regulatory standards.
- No home in St Marys reaches 4★ on staffing. Ask each home about registered nurse coverage 24/7.
- No 5★ overall homes in this suburb. The strongest performer is Boronia House at 4★.
- 0 of 2 homes sit below the national average (3.1★). Use the comparison tool to weigh trade-offs.
All homes in St Marys
| Boronia House Thompson Health Care Pty Ltd · Large · For profit | 4.0 | 5 | 4 | 3 | 1 |
| SummitCare St Marys St Marys Gardens Aged Care Centre Pty Limited · Large · For profit | 4.0 | 5 | 4 | 3 | 4 |
Best by sub-rating in St Marys
Best for staffing
- 1.Boronia House3★
- 2.SummitCare St Marys3★
Best for experience
- 1.Boronia House4★
- 2.SummitCare St Marys4★
Best for compliance
- 1.Boronia House5★
- 2.SummitCare St Marys5★
New to Star Ratings?
Each home is scored 1–5★ across compliance, residents' experience, staffing, and quality measures, then combined into an overall rating.