Alpha Preparatory School vs Marlborough Primary School
A head-to-head comparison of two primary schools in London, England, 621 m apart, using official English 2025 data. The better value in each row is highlighted.
Alpha Preparatory School
Harrow · Independent primary · Ages 3–11
110 students
Marlborough Primary School
Harrow · Local authority primary · Ages 3–11
651 students
| Measure | Alpha Preparatory School Harrow, London | Marlborough Primary School Harrow, London |
|---|---|---|
| Success Index (England) | – Not rated | 60 Top 50% |
| Region rank | – | #938 of 1,720 |
| National rank | – | #5818 of 15,697 |
| Sector | Independent | Local authority |
| Type | Primary | Primary |
| Year range | Ages 3–11 | Ages 3–11 |
| Students | 110 | 651 |
| Pupils on roll | 110 | 651 |
| Free school meals | – | 17.2% |
| Capacity filled | 62.9% | 91.4% |
| KS2 expected standard (RWM) | – | 68% |
| KS2 higher standard (RWM) | – | 9% |
| 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 | Harrow | Harrow |
| region | London | London |
| Website | www.alpha.harrow.sch.uk | www.marlboroughprimary.school |
The verdict
- •Marlborough Primary School is the larger school with 651 students compared with 110.
- •Alpha Preparatory School is a independent school while Marlborough 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 Alpha Preparatory School better than Marlborough Primary School?
The two schools are very close on the Success Index (England). Differences in sector, size, programmes and distance from home will matter more than the score.
How far apart are Alpha Preparatory School and Marlborough Primary School?
About 621 m in a straight line, between Harrow and Harrow in London.
Which has the better Pupils on roll?
Alpha Preparatory School: 110. Marlborough Primary School: 651. Number of pupils in the latest school census.
How do Alpha Preparatory School and Marlborough Primary School rank in London?
Alpha Preparatory School is unranked and Marlborough Primary School is 938th of 1,720 among primary schools in London on the 2025 Success Index (England).