At least a third of Suffolk’s primary school students are attending schools rated only satisfactory or inadequate.
Suffolk placed 119 in a table ranking the performance of primary school’s in England’s 151 authorities.
Only 61 per cent of the county’s primary school students are attending a school rated outstanding or good.
Suffolk’s secondary schools were rated higher, with 75 per cent of students attending a school rated good or outstanding, ranking the authority 58.
Graham Newman, Suffolk County Council’s cabinet member for education and young people, said: “Suffolk’s school are clearly performing well compared to their east of England neighbours, but more needs to be done to raise attainment.
“The statistics show that two thirds are either good or outstanding and we have very few schools judged to be inadequate.”
“Suffolk County Council has a good record of ensuring any schools judged to be inadequate make rapid improvement,”
Of Suffolk’s secondary and primary schools 35 per cent are rated satisfactory or inadequate.
Geoff Barton, headmaster of King Edward VI School, Bury St Edmunds, said: “I think all in Suffolk knew standards are not high enough - we are getting there.
“I have never known a county council where the people are working so determinedly to raise standards.”