Projections of student enrollment are based on a combination of cohort survival trends and new home construction. Over time, SDS has developed formulas for estimating the number of students that can be expected from each new home in a district. Many factors are considered, including: historical and current enrollment, demographic trends, price range of homes built and stage of development. Incorporating formulas with specific information about a district allows SDS to project with confidence student enrollment for the next 1-2 years (error rate typically less than 2%) and give excellent insight into the next 3-10 years for the district. Accurate projections of future enrollment help district leaders develop better budgeting, staffing, and facility needs.