Best secondary schools in Slough
Thames Valley averages flatten Slough micro-patches; lock schools to sector. This ranking covers 15 secondary schools in the Slough local authority. Postcode area SL3 has the highest average school score (85.6 across 5 schools), while SL2 sits at the lower end (27.5). 80% of ranked Slough secondary schools hold an Ofsted Outstanding or Good rating.
Top 10 secondary schools in Slough on the LocaleIQ model
Ordered by composite score within the Slough comparison pool. Rankings reflect published data, not editorial opinion.
More secondary schools in Slough
Positions 11–15 in the Slough ranking.
| # | School | LocaleIQ | Ofsted | Phase |
|---|---|---|---|---|
| 11 | Wexham School | 29.2 | Good | Secondary |
| 12 | Beechwood School | 10.3 | Requires improvement | Secondary |
| 13 | The Westgate School | 7.3 | Good | Secondary |
| 14 | Lynch Hill Enterprise Academy | 5.4 | Requires improvement | Secondary |
| 15 | Grove Academy | 3.1 | Inadequate | All-through |
Keep exploring Slough
Questions about secondary schools in Slough
What is the best secondary school in Slough?
Upton Court Grammar School is the top-ranked secondary school in Slough (LocaleIQ score 99.3 out of 100). Ofsted: Outstanding. Attainment 8 79.8. The score combines Ofsted outcome, Progress 8 and Attainment 8, and cohort-weighted percentile ranks within the Slough secondary pool.
What is the best primary school in Slough?
Penn Wood Primary and Nursery School tops the Slough primary school ranking (LocaleIQ 98.2). Ofsted: Outstanding. KS2 expected 83% · higher 17%. See the full primary school ranking for Slough for the complete list.
Which secondary schools in Slough have the best GCSE results?
Attainment 8 measures average GCSE grades across eight subjects; Progress 8 compares actual grades against predictions based on KS2 — a positive figure means pupils outperformed expectations. Top performers in Slough: Upton Court Grammar School (Attainment 8 79.8); Langley Grammar School (Attainment 8 77.6); St Bernard's Catholic Grammar School (Attainment 8 77.3). Both metrics feed into the LocaleIQ secondary school score.
Which secondary schools in Slough are rated Outstanding by Ofsted?
5 secondary schools in the Slough ranking hold an Outstanding Ofsted rating: Upton Court Grammar School, Langley Grammar School, St Bernard's Catholic Grammar School, Herschel Grammar School, Eden Girls' School, Slough. Outstanding means Ofsted judged the school exceptional in all inspection areas. LocaleIQ weighs DfE performance data alongside Ofsted, so a Good-rated school can still rank highly.
How many secondary schools are ranked in Slough?
This ranking covers 15 secondary schools in the Slough comparison pool. Schools without sufficient published data are excluded but may appear in the LocaleIQ directory.
Which area of Slough has the best secondary schools?
By average LocaleIQ score across postcode areas, SL3 has the strongest cluster — 85.6 average across 5 ranked secondary schools. SL2 sits at the lower end (27.5 average). Thames Valley averages flatten Slough micro-patches; lock schools to sector. Postcode averages mask individual variation — always review each school's full profile.
Ranking data last computed 29 March 2026.