Primary schools celebrated making the grade this week after recording some of their best ever results in national league tables.

The proportion of the borough's primaries meeting Department for Education targets has risen from 74 per cent to 79 per cent in the last year, new figures showed.

Two schools - St Cyprian's and David Livingstone - saw every Year Six pupil achieve level four or above in both English and Maths, while Oasis Academy Shirley Park doubled its success rate in just 12 months.

Seventy-eight per cent of pupils at Oasis, on Long Lane, hit the target in their summer exams, compared to 39 per cent in 2011.

Neil Harvey, head of the academy's primary phase, said: "It's all down to commitment and really hard work right through the school, from staff to pupils. The children are ecstatic and so are their parents."

The headteacher of St Cyprian's, in Springfield Road, Thornton Heath, said she was delighted to see the number of pupils celebrating level four results jump up from 75 per cent to 100 per cent.

Kate Magliocco said: "We have worked relentlessly hard. We are really proud of the results and so are the pupils. I told the children in assembly this morning and they were all cheering."

David Livingstone in Northwood Road, Thornton Heath, saw its proportion of level fours increase from 86 per cent to 100 per cent.

Headteacher Clare Slade said: "We are all delighted at our Sats grades, which is the result of carefully targeted teaching and the immense hard work of our children, staff and parents."

The league tables are based on results in Key Stage 2 Sats exams, which pupils sit aged 10 or 11 in their final year of primary school.

Croydon's results keep the borough in line with the national average.

But it remains one of the poorest performing authorities in London, with only Haringey, Barking and Dagenham, and Waltham Forest reporting worse results.

Castle Hill, where only 53 per cent of pupils scored level four or higher, was the worst performing primary school in the borough.