The allocation of public funds to support the provision of school places in England is underpinned by pupil forecasts submitted by local authorities within their annual statistical returns to central government. This chapter illustrates how a combination of data sources, in conjunction with a robust forecasting methodology, provide the essential components of a school-place planning support system (PSS) that meets the requirements for regulatory reporting and provides evidence to support councils in their decision-making processes. The complexities of England’s school estate are summarised and the prevailing demographic trends driving change in the size, composition and distribution of school-age populations are presented. The critical data inputs to the school-place planning process are described, the principles of a pupil forecasting methodology are outlined and examples of the statistical outputs generated by an effective school-place PSS are presented. The chapter concludes by identifying the key criteria for effective school-place planning.