This report provides a description and analysis of various aspects of the relationship between schools and communities in Ontario, Canada. A survey of 1,023 Ontario elementary and secondary school principals yielded data that provided a general description of the overall role of the principal and that indicated the nature of community involvement and the principal's role in the initiation and maintenance of school-community activities. Part 1 examines principals' attitudes and behaviors in relation to the school and the community, including their perceptions of their roles in community involvement and their preparation for dealing with the community. Part 2 summarizes data on Ontario community schools, including school characteristics, history, organization, staffing, and school-community activities. Part 3 reviews the community school movement and notes implications for school leadership. (Author/DS)