Grendon Underwood School vs Marsh Gibbon CofE Primary School
A head-to-head comparison of two primary schools in South East, England, 4.1 km apart, using official English 2025 data. The better value in each row is highlighted.
Grendon Underwood School
Aylesbury · Academy primary · Ages 2–11
188 students
Marsh Gibbon CofE Primary School
Bicester · Local authority primary · Ages 4–11
150 students
| Measure | Grendon Underwood School Aylesbury, South East | Marsh Gibbon CofE Primary School Bicester, South East |
|---|---|---|
| Success Index (England) | 70 Top 50% | 60 Top 50% |
| Region rank | #737 of 2,471 | #1038 of 2,471 |
| National rank | #3983 of 15,697 | #5844 of 15,697 |
| Sector | Academy | Local authority |
| Type | Primary | Primary |
| Year range | Ages 2–11 | Ages 4–11 |
| Students | 188 | 150 |
| Pupils on roll | 188 | 150 |
| Free school meals | 14.9% | 12% |
| Capacity filled | 89.5% | 71.4% |
| KS2 expected standard (RWM) | 79% | 71% |
| KS2 higher standard (RWM) | 6% | 4% |
| KS2 reading progress | – | – |
| KS2 writing progress | – | – |
| KS2 maths progress | – | – |
| Attainment 8 | – | – |
| Progress 8 | – | – |
| Grade 5+ English & maths | – | – |
| Grade 4+ English & maths | – | – |
| EBacc average points | – | – |
| A level points per entry | – | – |
| town | Aylesbury | Bicester |
| region | South East | South East |
| Website | gucs.org.uk | www.marshgibbon.bucks.sch.uk |
The verdict
- •Grendon Underwood School scores higher on the Success Index (England) (69.6 vs 60.0).
- •Grendon Underwood School does better on ks2: reading, writing & maths expected standard (79% vs 71%).
- •Grendon Underwood School does better on ks2: higher standard (6% vs 4%).
- •Grendon Underwood School is the larger school with 188 students compared with 150.
- •Grendon Underwood School is a academy school while Marsh Gibbon CofE 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.
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 Grendon Underwood School better than Marsh Gibbon CofE Primary School?
On the Success Index (England), Grendon Underwood School ranks higher (69.6 vs 60.0 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 Grendon Underwood School and Marsh Gibbon CofE Primary School?
About 4.1 km in a straight line, between Aylesbury and Bicester in South East.
Which has the better Pupils on roll?
Grendon Underwood School: 188. Marsh Gibbon CofE Primary School: 150. Number of pupils in the latest school census.
How do Grendon Underwood School and Marsh Gibbon CofE Primary School rank in South East?
Grendon Underwood School is 737th of 2,471 and Marsh Gibbon CofE Primary School is 1038th of 2,471 among primary schools in South East on the 2025 Success Index (England).