A multidimensional study examines both the dimensions of school counselors' involvement in school-family-community partnerships and the factors related to their involvement in partnerships. The School Counselor Involvement in Partnerships Survey was revised and its factor structure examined. Principal factor analyses revealed three dimensions of partnership involvement. A national sample of 217 school counselors was drawn from the Common Core of Data, and hierarchical regression analyses indicated that collaborative school climate, school principal expectations, school counselor self-efficacy about partnerships, role perceptions, time constraints, and hours of partnership-related training were associated with school counselor overall involvement in partnerships. Implications for school counselor practice, training, and research are discussed. (Contains 2 tables.)