98%
GCSE 9–4 · 2024/25
96%
GCSE 5+ · 2024/25
73.9
Attainment 8 · 2024/25
87%
EBacc entry · 2024/25
1296.0
EBacc APS · 2024/25
1,368
Pupils · 2024/25
17%
EAL · 2024/25
14%
Persistent abs. · 2024/25
Ofsted inspection
Standards maintained
Ofsted inspection · 06/11/2024
Inadequate
Requires improvement
Good
Outstanding
Local authorityBuckinghamshire
PhaseSecondary with sixth form with sixth form
School typeAcademy
Pupil : teacher ratio18.5:1
AdmissionsSelective
Religious characterNone
StatusOpen
Overview of Dr Challoner's Grammar School · Secondary with sixth form · Buckinghamshire
How does this school perform?
Key Stage 4 · 2024/25 · trend since 2016/17
GCSE 9–4 incl. Eng & maths
98%
-2pp
100%99%98%
'19'22'23'24'25
'25 · 98%
GCSE 5+ incl. Eng & maths
96%
-3pp
100%98%96%
'19'22'23'24'25
'25 · 96%
Attainment 8
73.9
-3.6
77.975.973.9
'19'22'23'24'25
'25 · 73.9
EBacc entry
87%
-1pp
88%68%47%
'19'22'23'24'25
'25 · 87%
EBacc APS
1296.0
-100.1
1396.11321.11246.0
'19'22'23'24'25
'25 · 1296.0
Sixth form
Key Stage 5 · 2024/25 · trend since 2016/17
A-level APS
47.4
+0.6
51.048.345.6
'19'22'23'24'25
'25 · 47.4
A-level value added
+0.13
-0.1
+0.2+0.1+0.1
'17'18'19'24'25
'25 · +0.1
AAB+ in facilitating subjects
58%
+4pp
69%61%53%
'19'22'23'24'25
'25 · 58%
Average A-level grade
A-
0
AAA
'19'22'23'24'25
'25 · A-
Pupils & context
2024/25
Pupils on roll
1,368
Pupil : teacher ratio
18.5
Workforce data · 2025/26
EAL
17%
FSM eligible
3%
SEN
15%
Overall absence
5%
Persistent absence
14%
Contact
Address
Chesham Road, Amersham, HP6 5HA
Local authority
Buckinghamshire
Website
Telephone
Email
—
History
All years · Historical DfE data by academic year
Secondary — Key Stage 4
GCSE attainment and Progress 8 — how pupils progressed from KS2 to KS4.
| Year | GCSE 9–4 | GCSE 5+ | Attainment 8 | Progress 8 | EBacc entry | EBacc APS | EBacc lang entry | Cohort |
|---|---|---|---|---|---|---|---|---|
| 2024/25 | 98% | 96% | 73.9 | Not applicable | 87% | 1296.0 | 93% | 1,368 |
| 2023/24 | 100% | 100% | 77.5 | +1.18 | 88% | 1396.1 | 92% | 1,370 |
| 2022/23 | 99% | 99% | 77.5 | +1.19 | 88% | 1361.0 | 95% | 1,368 |
| 2021/22 | 99% | 99% | 77.9 | +0.75 | 88% | 1367.1 | 93% | 1,358 |
| 2018/19 | 100% | 99% | 75.2 | +0.72 | 47% | 1246.0 | 91% | 1,352 |
| 2017/18 | 100% | 98% | 74.8 | +0.85 | 68% | 1283.6 | 98% | 1,350 |
| 2016/17 | 99% | 97% | 74.3 | +0.84 | 92% | — | 95% | 1,329 |
Sixth form — Key Stage 5
| Year | A-level APS | Avg grade | VA progress | AAB+ | Cohort |
|---|---|---|---|---|---|
| 2024/25 | 47.4 | A- | +0.13 | 58% | 222 |
| 2023/24 | 46.9 | A- | +0.20 | 54% | 233 |
| 2022/23 | 47.1 | A- | — | 54% | 216 |
| 2021/22 | 51.0 | A | — | 69% | 221 |
| 2018/19 | 45.6 | A- | +0.20 | 52% | 212 |
| 2017/18 | 44.4 | B+ | +0.05 | 50% | 217 |
| 2016/17 | 42.7 | B+ | +0.09 | 46% | 196 |
Pupils & absence
| Year | Pupils | Pupil:teacher | SEN | EAL | FSM ever | Absence | Persistent absence |
|---|---|---|---|---|---|---|---|
| 2024/25 | 1,368 | 18.1 | 15% | 17% | 3% | 5% | 14% |
| 2023/24 | 1,370 | 18.0 | 13% | 16% | 2% | 6% | 15% |
| 2022/23 | 1,368 | 18.5 | 7% | 14% | 3% | 5% | 11% |
| 2021/22 | 1,358 | 17.8 | 7% | 12% | 3% | 6% | 20% |
| 2020/21 | 1,363 | 19.2 | 9% | 11% | 2% | — | — |
| 2018/19 | 1,352 | 19.8 | 9% | 9% | 3% | 4% | 9% |
| 2017/18 | 1,350 | 19.7 | 10% | 8% | 3% | 4% | 6% |
| 2016/17 | 1,329 | 19.3 | 1% | 8% | 2% | 4% | 6% |
School performance data © Crown copyright. Source: Department for Education.