Mersea Island School is a foundation school serving families in Colchester and the wider Essex area. The school is well established within the local education landscape.

The school educates mixed pupils aged 2 to 11. It currently has 393 pupils on roll with space for 468, offering a broad curriculum across all primary year groups.

The most recent Ofsted inspection, published on 2 March 2023, rated the school Good. Inspectors highlighted the overall quality of education and the strong relationships between staff and pupils.