Alpha Preparatory School vs Harrow High School
A head-to-head comparison of two schools in London, England, 784 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
Harrow High School
Harrow · Academy secondary · Ages 11–18
982 students
| Measure | Alpha Preparatory School Harrow, London | Harrow High School Harrow, London |
|---|---|---|
| Success Index (England) | – Not rated | 55 Top 50% |
| Region rank | – | #337 of 640 |
| National rank | – | #1722 of 4,090 |
| Sector | Independent | Academy |
| Type | Primary | Secondary |
| Year range | Ages 3–11 | Ages 11–18 |
| Students | 110 | 982 |
| Pupils on roll | 110 | 982 |
| Free school meals | – | 33.9% |
| Capacity filled | 62.9% | 89.3% |
| KS2 expected standard (RWM) | – | – |
| KS2 higher standard (RWM) | – | – |
| KS2 reading progress | – | – |
| KS2 writing progress | – | – |
| KS2 maths progress | – | – |
| Attainment 8 | – | 47.4 |
| Progress 8 | – | – |
| Grade 5+ English & maths | – | 47.3% |
| Grade 4+ English & maths | – | 64.5% |
| EBacc average points | – | 4.35 |
| A level points per entry | – | 34.8 |
| town | Harrow | Harrow |
| region | London | London |
| Website | www.alpha.harrow.sch.uk | www.harrowhigh.com |
The verdict
- •Harrow High School is the larger school with 982 students compared with 110.
- •Alpha Preparatory School is a independent school while Harrow High School is a academy 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 Harrow High 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 Harrow High School?
About 784 m in a straight line, between Harrow and Harrow in London.
Which has the better Pupils on roll?
Alpha Preparatory School: 110. Harrow High School: 982. Number of pupils in the latest school census.
How do Alpha Preparatory School and Harrow High School rank in London?
Alpha Preparatory School is unranked and Harrow High School is 337th of 640 among primary schools in London on the 2025 Success Index (England).