# Class sizes across London

> Average infant, KS2, primary and secondary class sizes, with large-class context.

- Category: People
- Cadence: annual
- Status: Published on a annual cadence.
- Dataset key: `class-sizes-across-london`
- Source: [Department for Education](https://explore-education-statistics.service.gov.uk/find-statistics/school-pupils-and-their-characteristics)
- Licence: Open Government Licence v3.0 — [terms](https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/)
- Canonical page: [https://londongraph.com/g/class-sizes-across-london](https://londongraph.com/g/class-sizes-across-london)
- Machine-readable record: [https://londongraph.com/data/class-sizes-across-london](https://londongraph.com/data/class-sizes-across-london)

## Methodology

Latest Department for Education class-size data for state-funded primary and secondary schools. A class is the published class-type unit, not a pupil-to-teacher ratio. The over-30 share is shown for context; the legal infant-class limit has specified exceptions and does not apply in the same way to every class type.

## Visualisations

- [Class-size map](https://londongraph.com/g/class-sizes-across-london): Select infant, KS2, primary or secondary average class size.
- [Distribution](https://londongraph.com/g/class-sizes-across-london?view=distribution): Inspect the selected average around the London median and quartiles.
- [Phase profile](https://londongraph.com/g/class-sizes-across-london?view=phase-profile): Compare class types and large-class pupil shares within a selected borough.

## Citation guidance

Attribute the original publisher named above and identify LondonGraph as the visualisation and methodology layer. Do not describe live values as a historical census, and do not present placeholder values as observations.