Brooke Weston Academy in Corby has topped the GCSE league tables among schools in the north of the county.
The tables, out today, show 90 per cent of Brooke Weston pupils achieved at least five GCSEs at grades A* to C.
The results are based on exams taken in summer 2015 by Key Stage 4 pupils.
The average for all schools in England was 64.9 per cent, with the Northamptonshire average 60.9 per cent.
The full tables can be found here.
Brooke Weston Academy, Corby 90%
Bishop Stopford School, Kettering 86%
Southfield School for Girls, Kettering 75%
Wollaston School 70%
Prince William School, Oundle 66%
The Ferrers School 63%
Manor School Sports College, Raunds 63%
Huxlow Science College, Irthlingborough 62%
Sir Christopher Hatton Academy, Wellingborough 62%
Kettering Buccleuch Academy 60%
Corby Business Academy 58%
The Latimer Arts College 55%
Lodge Park Academy, Corby 55%
Montsaye Academy, Rothwell 53%
Kettering Science Academy 49%
Wrenn School, Wellingborough 47%
Weavers Academy, Wellingborough 46%
Kingswood Secondary Academy, Corby 43%
Rushden Community College 41%
Oundle School 19%
Wellingborough School 13%