Trends in data from the past to the present are described for demographic variables (gender, race and ethnicity, preparation levels, credentialing, age and experience) and ratio of students to school psychologists. School psychology in the United States will continue to be characterized as primarily Caucasian, specialist- level and female through 2020. Projections of personnel needs based on estimates of new school psychologists entering the field through graduation from university programs, as well as those exiting the field through estimates of retirement and attrition, indicate that there will be a severe shortage of school psychologists through 2010, with the shortage then continuing but declining through 2020. Implications are discussed and possible strategies and directions are offered for the field.