There is currently no limit on the size of most primary and secondary school classes in England although infant classes – for pupils aged four to seven – have a statutory maximum of 30 pupils.
Some exceptions are permitted, such as including a child with special educational needs who is partly educated in a special school as the 31st pupil.
According to official Department for Education data, 15 primary schools in Portsmouth have classes with more than 30 pupils.
In total the schools are home to 36 classes with more than 30 pupils, containing 1,186 children.
See the schools below in our gallery.
You can subscribe here for unlimited access to our online coverage, including Pompey, for 27p a day.
9. St George's Beneficial C of E Primary School - two classes with 31+ pupils
St George's Beneficial C of E Primary School has two classes with 31+ pupils in it. This means 71 pupils are in larger classes and taught by one teacher. Photo: Google Maps
10. Solent Junior School - three classes with 31+ pupils
Solent Junior School has three classes with 31+ pupils in it. This means 93 pupils are in larger classes and taught by one teacher. Photo: Google Maps
11. Court Lane Junior Academy - three classes with 31+ pupils
Court Lane Junior Academy has three classes with 31+ pupils in it. This means 93 pupils are in larger classes and taught by one teacher. Photo: Google Maps
12. Copnor Primary School - five classes with 31+ pupils
Copnor Primary School has five classes with 31+ pupils in it. This means 170 pupils are in larger classes and taught by one teacher. Photo: Google Maps