This briefing is an analysis of data collected through the National Child Measurement Programme (NCMP). NCMP is a Public Health surveillance programme operating across England. It measures the heights and weights of primary school children in schools in Reception Class (ages 4 and 5) and Year 6 (ages 10 and 11) to monitor and assess population weight status. This briefing describes how the programme operates in Norfolk, how it is delivered, and what the latest data from the programme tells us about children’s weight in relation to health and well-being.