Colchester Prep & High School vs St Mary's School for Girls
A head-to-head comparison of two all-through schools in East of England, England, 832 m apart, using official English 2025 data. The better value in each row is highlighted.
Colchester Prep & High School
Colchester · Independent all-through · Ages 2–16
280 students
St Mary's School for Girls
Colchester · Independent all-through · Ages 2–17
424 students
| Measure | Colchester Prep & High School Colchester, East of England | St Mary's School for Girls Colchester, East of England |
|---|---|---|
| Success Index (England) | 91 Top 10% | 96 Top 5% |
| Region rank | #31 of 460 | #14 of 460 |
| National rank | #241 of 4,090 | #101 of 4,090 |
| Sector | Independent | Independent |
| Type | All-through | All-through |
| Year range | Ages 2–16 | Ages 2–17 |
| Students | 280 | 424 |
| Pupils on roll | 280 | 424 |
| Free school meals | – | – |
| Capacity filled | 50.2% | 70.7% |
| KS2 expected standard (RWM) | – | – |
| KS2 higher standard (RWM) | – | – |
| KS2 reading progress | – | – |
| KS2 writing progress | – | – |
| KS2 maths progress | – | – |
| Attainment 8 | 61.0 | 66.5 |
| Progress 8 | – | – |
| Grade 5+ English & maths | 65.1% | 82.4% |
| Grade 4+ English & maths | 93% | 100% |
| EBacc average points | 5.39 | 6.26 |
| A level points per entry | – | – |
| town | Colchester | Colchester |
| region | East of England | East of England |
| Website | www.colchesterhighschool.co.uk | www.stmaryscolchester.org.uk |
The verdict
- •St Mary's School for Girls scores higher on the Success Index (England) (95.5 vs 90.6).
- •St Mary's School for Girls is the larger school with 424 students compared with 280.
- •Colchester Prep & High School is co-educational and St Mary's School for Girls is girls.
The Success Index (England) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
Free academic assessment
Torn between two schools? Start with your child.
Whichever you choose, a free Success Tutoring assessment shows exactly where your child is in English and Maths and how to get ahead before the next school year.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Centres across NSW, VIC, QLD, WA, SA and ACT
Frequently asked questions
Is Colchester Prep & High School better than St Mary's School for Girls?
On the Success Index (England), St Mary's School for Girls ranks higher (95.5 vs 90.6 out of 100). The index is built from published results and context data, not from teaching quality or fit, so visit both schools before deciding.
How far apart are Colchester Prep & High School and St Mary's School for Girls?
About 832 m in a straight line, between Colchester and Colchester in East of England.
Which has the better Pupils on roll?
Colchester Prep & High School: 280. St Mary's School for Girls: 424. Number of pupils in the latest school census.
How do Colchester Prep & High School and St Mary's School for Girls rank in East of England?
Colchester Prep & High School is 31st of 460 and St Mary's School for Girls is 14th of 460 among all-through schools in East of England on the 2025 Success Index (England).