This brief is designed to be of particular interest to school principals, district staff, and others who are responsible for all aspects of school functioning. It should also be useful to those focusing on a narrower range of school functions (e.g., academics, health and safety, civic development) who want a better sense of how their concerns fit into the larger environment.  We present national estimates from a variety of sources on the school environment of adolescents in the areas of health, safety, social support, academics, and civic engagement.