SchoolScoresBest secondary schools in Thurrock
How this list works. Ranked by the percentage of pupils achieving grade 5 or above in both English and maths GCSE, averaged over up to the last three years and weighted by the number of pupils each year. Only years with at least 10 pupils count, and a school needs at least one such year to be ranked. Independent schools, special schools and alternative provision are not ranked because their results aren't comparable. Ofsted outcomes are shown alongside but are not part of the ranking. Full methodology.
| # | School | Result |
|---|---|---|
| 1 | Harris Academy Chafford Hundred Ofsted: Outstanding (2024) | 71% |
| 2 | Grays Convent High School Ofsted: Good (2013), confirmed 2023 | 58% |
| 3 | Harris Academy Ockendon Ofsted: Outstanding (2024) | 55% |
| 4 | Thames Park Secondary School Ofsted: Good (2023) · 1 year of results | 54% |
| 5 | Harris Academy Riverside Ofsted: Report card 2026: 3 strong, 4 expected | 49% |
| 6 | Orsett Heath Academy Ofsted: Good (2023) · 1 year of results | 48% |
| 7 | The Gateway Academy Ofsted: Good (2019), confirmed 2024 | 47% |
| 8 | St Clere's School Ofsted: No overall grade (2025) | 41% |
| 9 | William Edwards School Ofsted: Report card 2026: 3 expected, 3 needs attention | 39% |
| 10 | The Hathaway Academy Ofsted: Good (2015), confirmed 2024 | 35% |
| 11 | Mossbourne Fobbing Academy Ofsted: Inadequate (2022, before conversion) · 2 years of results | 35% |
| 12 | Mossbourne Port Side Academy Ofsted: Requires improvement (2023, before conversion) · 2 years of results | 34% |
| 13 | Ormiston Park Academy Ofsted: Requires improvement (2024) | 25% |
Result: grade 5 or above in English and maths. Source: DfE school performance tables to 2025; Ofsted inspection data.
Page updated 26 September 2026.