The National Assembly on School-Based Health Care's (NASBHC) 2007-2008 Census is the 11th request for data from school-based health centers (SBHCs) since 1986. The Census: (1) provides a better understanding of the role of SBHCs in meeting the needs of underserved children and adolescents; (2) collects relevant trend data on demographics, staffing, operations, prevention activities, clinical services, and policies; and (3) creates a national database of programs. Data for the 2007-2008 Census were collected from October 2008 through October 2009. The 2007-2008 Census identified 1,909 clinics and programs connected with schools nationwide, including: (1) School-based programs: Partnerships between schools and community health organizations that deliver health care to students within a fixed site on a school campus; (2) Mobile programs: Programs without a fixed site that rotate a health care team through a number of schools; and (3) School-linked programs: Health care programs that are formally or informally linked with schools to coordinate and promote health care for students on campus; clinical services are not provided on the school site. These programs (n=86) were not included in this report. Sixty-four percent (n=1226) of known programs responded to the survey. Efforts were made to confirm that health centers that did not complete a survey were open during the 2007-08 school year. With a few exceptions, the analysis in this report includes programs that provide, at a minimum, primary care services (n=1096). However, all programs (n=1226)--including those that do not provide primary care services--are included in the mental health and health promotion/prevention sections of this report. [Additional funding for this paper was provided by the Office of Special Populations.]