Department for Education · Explore Education Statistics: absence, SEN, attainment, apprenticeships, NEET, class sizes · 3 values

Pupils in secondary school classes by size of class

The number of pupils in state-funded secondary school classes in England, split by the size of the class they were taught in — up to 30 pupils, 31 to 35, or 36 and more.

latest 12 months to 2025/26 academic year; 1 periods summed · total 3,359,927 pupils · published 4 August 2026

1 to 30: 2,809,227 (84%)84%31 to 35: 524,510 (16%)16%36 plus: 26,190 (1%)
1 to 30 2,809,227 (84%)31 to 35 524,510 (16%)36 plus 26,190 (1%)

1 to 30 is the largest size of class at 84% of the total.

Size of classLatest 12 monthsSharePrevious 12 monthsChange
1 to 302,809,22783.6%2,844,074▼ 1.2%
31 to 35524,51015.6%501,132▲ 4.7%
36 plus26,1900.8%24,001▲ 9.1%

Source

Dataset
Explore Education Statistics: absence, SEN, attainment, apprenticeships, NEET, class sizes · sheet class_size
Rows
Type of class=Secondary; Size of class=Total; values are the sum of the published rows for each size of class and period.
Caveat
Whether large classes are unlawful — no statutory limit applies to secondary classes; nor pupils in independent schools.
Parent metric
Pupils in secondary school classes
API
/api/metrics/secondary_class_pupils_by_size/vintages