Hertfordshire grammar schools league table 2025
State schools with selective admissions. Ranked by the Success Index (England) from official English data; 6 schools in Hertfordshire, East of England. Rank positions shown on each profile are within England and East of England.
- Primary Schools in Hertfordshire
- Secondary Schools in Hertfordshire
- State Schools in Hertfordshire
- Academies & Free Schools in Hertfordshire
- Independent Schools in Hertfordshire
- Girls' Schools in Hertfordshire
- Boys' Schools in Hertfordshire
- Secondary Schools by Attainment 8 in Hertfordshire
- Primary Schools by KS2 Results in Hertfordshire
- Sixth Forms by A Level Results in Hertfordshire
- Largest Schools in Hertfordshire
- 190St Francis CollegeLetchworth Garden City · Independent All-through56.9 Attainment 8 · 264 students
- 255St Albans High School for GirlsSt Albans · Independent All-through48.5 Attainment 8 · 1,106 students
- 349Queenswood SchoolHatfield · Independent Secondary47.2 Attainment 8 · 426 students
- 435Haberdashers' Girls' SchoolBorehamwood · Independent All-through39.9 Attainment 8 · 1,118 students
- 527St Edmund's CollegeWare · Independent All-through35.5 Attainment 8 · 684 students
- 622Merchant Taylors' SchoolNorthwood · Independent Secondary21.7 Attainment 8 · 1,051 students
| # | School | Sector | Success Index (England) | Key result | Students |
|---|---|---|---|---|---|
| 1 | St Francis College Letchworth Garden City · All-through · Ages 3–18 | Independent | 89.5 Top 10% | 56.9 Attainment 8 | 264 |
| 2 | St Albans High School for Girls St Albans · All-through · Ages 4–18 | Independent | 55.2 Top 50% | 48.5 Attainment 8 | 1,106 |
| 3 | Queenswood School Hatfield · Secondary · Ages 11–18 | Independent | 48.5 Top 50% | 47.2 Attainment 8 | 426 |
| 4 | Haberdashers' Girls' School Borehamwood · All-through · Ages 4–18 | Independent | 34.6 Lower 50% | 39.9 Attainment 8 | 1,118 |
| 5 | St Edmund's College Ware · All-through · Ages 2–19 | Independent | 26.5 Lower 50% | 35.5 Attainment 8 | 684 |
| 6 | Merchant Taylors' School Northwood · Secondary · Ages 11–18 | Independent | 22.3 Lower 50% | 21.7 Attainment 8 | 1,051 |
St Francis College in Letchworth Garden City leads the 2025 list of grammar schools in Hertfordshire with a Success Index (England) of 89.5. Of the 6 schools shown, 6 are independent.
For the full picture see the wider East of England grammar schools league table, every school on the Hertfordshire page, or the comparison tool to put a shortlist side by side.
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Frequently asked questions
What is the best grammar school in Hertfordshire?
St Francis College in Letchworth Garden City, East of England ranks first among grammar schools in Hertfordshire with a Success Index (England) of 89.5 out of 100 (Pupils on roll: 264).
How are grammar schools in Hertfordshire ranked?
Each school's Success Index (England) combines 9 factors: ks2: reading, writing & maths expected standard (35%), ks2: higher standard (20%), ks2: reading progress (10%), ks2: maths progress (10%), progress 8 (20%), attainment 8 (30%), grade 5+ in english & maths (15%), a level points per entry (10%), community advantage (fewer pupils on free school meals) (15%). Each factor is a percentile against schools of the same type across England. Schools with fewer than 60 students are excluded from rankings.
Are these 2025 rankings official?
No. They are computed by Success Tutoring from official English data (DfE – Get Information About Schools; DfE – Compare school and college performance). Independent schools rarely appear in the performance tables, so most receive no attainment components and no score.