Ark Charter Academy vs St John's Cathedral Catholic Primary School
A head-to-head comparison of two schools in South East, England, 538 m apart, using official English 2025 data. The better value in each row is highlighted.
Ark Charter Academy
Southsea · Academy secondary · Ages 11–16
883 students
St John's Cathedral Catholic Primary School
Portsmouth · Local authority primary · Ages 3–11
237 students
| Measure | Ark Charter Academy Southsea, South East | St John's Cathedral Catholic Primary School Portsmouth, South East |
|---|---|---|
| Success Index (England) | 22 Lower 50% | 76 Top 25% |
| Region rank | #544 of 679 | #515 of 2,471 |
| National rank | #3410 of 4,090 | #2754 of 15,697 |
| Sector | Academy | Local authority |
| Type | Secondary | Primary |
| Year range | Ages 11–16 | Ages 3–11 |
| Students | 883 | 237 |
| Pupils on roll | 883 | 237 |
| Free school meals | 65.6% | 26% |
| Capacity filled | 98.1% | 112.9% |
| KS2 expected standard (RWM) | – | 83% |
| KS2 higher standard (RWM) | – | 13% |
| KS2 reading progress | – | – |
| KS2 writing progress | – | – |
| KS2 maths progress | – | – |
| Attainment 8 | 38.9 | – |
| Progress 8 | – | – |
| Grade 5+ English & maths | 35.9% | – |
| Grade 4+ English & maths | 52.5% | – |
| EBacc average points | 3.49 | – |
| A level points per entry | – | – |
| town | Southsea | Portsmouth |
| region | South East | South East |
| Website | charteracademy.org.uk/ | www.stjohnscathedralschool.org.uk/ |
The verdict
- •St John's Cathedral Catholic Primary School scores higher on the Success Index (England) (76.4 vs 21.6).
- •Ark Charter Academy is the larger school with 883 students compared with 237.
- •Ark Charter Academy is a academy school while St John's Cathedral Catholic Primary School is a local authority school, so fees and admission rules differ.
The Success Index (England) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
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Frequently asked questions
Is Ark Charter Academy better than St John's Cathedral Catholic Primary School?
On the Success Index (England), St John's Cathedral Catholic Primary School ranks higher (76.4 vs 21.6 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 Ark Charter Academy and St John's Cathedral Catholic Primary School?
About 538 m in a straight line, between Southsea and Portsmouth in South East.
Which has the better Pupils on roll?
Ark Charter Academy: 883. St John's Cathedral Catholic Primary School: 237. Number of pupils in the latest school census.
How do Ark Charter Academy and St John's Cathedral Catholic Primary School rank in South East?
Ark Charter Academy is 544th of 679 and St John's Cathedral Catholic Primary School is 515th of 2,471 among secondary schools in South East on the 2025 Success Index (England).