UK Top IB Schools - Small Cohort

This table is compiled based on the average IB score achieved by all students taking the IB Diploma exams in 2024, and will be updated when results are issued in July 2025.

2025 Results

#	Avg. Points	Name	Day/Board	Boy/Girl	Day £ inc.Vat	Board £ inc.Vat	Cohort Size
1	42.9	North London Collegiate School	Day	Girls	29,751		16
2	40.4	Royal High School Bath	Both	Girls	20,558	47,006	7
3	39.0	Redmaids' High School GDST	Day	Girls	21,165		11
4	37.5	Bristol Grammar School	Day	Co-ed	21,420		18
5	37.3	Kent College Canterbury	Both	Co-ed	28,536	53,394	11
6	37.2	Gresham's School	Both	Co-ed	37,605	52,755	17
7	37.1	Westbourne School	Both	Co-ed	22,825	56,748	11
8	37.0	Bedford School	Both	Boys	30,048	51,732	16
9	36.0	Leighton Park School	Both	Co-ed	34,470	55,980	11
=	36.0	Bedford Girls' School	Day	Girls	19,215
11	35.3	Lycee International de Londres Winston Churchill	Day	Co-ed	29,251		17
12	34.7	Ryde School With Upper Chine	Both	Co-ed	21,057	47,979	8
13	34.0	Bryanston School	Both	Co-ed	37,632	56,523	16
14	33.6	The Worthgate School	Both	Co-ed	19,820	54,935	11
15	33.0	Lomond School	Both	Co-ed	19,290	46,650	14
16	31.3	RGS Surrey Hills (formerly Box Hill School)	Both	Co-ed	30,534	55,131	17
17	31.0	Ellesmere College	Both	Co-ed	23,220	49,104	13
18	27.8	Windermere School - Browhead Campus	Both	Co-ed	25,500	48,001	19

Where a school has a cohort of fewer than 20 students taking the IBDP exams in a year, we list those schools in this small cohort table. This group does contain some very good academic schools, but parents need to be aware that with less than 20 students there may not be a full range of subjects available.

For help and advice on choosing and applying to any of these schools please contact us or complete an Enquiry Form.