The pass rate for GCSEs, grades A* to C, in Caerphilly County Borough has risen to 60.7% compared to 58.6% last year.
The overall pass rate for grades A* to G has increased to 98.1%, up from 96.7% in 2011.
Caerphilly County Borough Council said that early indications show the percentage of students achieving five GCSE passes at A* to C or vocational equivalent increased to 63.0%, up from 61.3% in 2011.
The percentage of learners achieving the five GCSESs at A* to C, including a GCSE in either Welsh or English and Mathematics, increased slightly to 43.7%, from 43.3% in 2011.
Cllr Rhianon Passmore, cabinet member for education and lifelong learning, said: “Our young people and their teachers deserve to be congratulated on their excellent achievements, commitment and effort.”
From September, Caerphilly County Borough Council will be working with the newly formed Education Achievement Service (EAS) for South East Wales, which was formed by Blaenau Gwent, Caerphilly, Newport, Monmouthshire and Torfaen local authorities to provide increased levels of challenge and support to schools.
The EAS will work with governors, school leaders and staff to improve the learning experiences of children and young people and, through this, enhance their success in national examinations and opportunities for employment.