The transition to and through kindergarten is consequential for the academic, social, and emotional wellbeing of children. Policies and practices are in place to smooth that transition. Researchers are working to understand which practices work best and for whom, particularly as the student population in U.S. schools continues to diversify. In this study, we analysed data from a large longitudinal study of racially, ethnically, and linguistically diverse families, children, and their teachers. We used multi-level modelling to examine the factors associated with families' reports of strong home-school interactions at the transition to and through kindergarten on the Family Involvement Questionnaire. We found that children having attended preschool and lower class size were associated with family reports of strong interactions. Surprisingly, we also found that teacher-family language match, teachers' self-efficacy for working with families, and teachers' beliefs about children were not significantly associated with families' reports of strong or weak interactions. This work has implications for family engagement policy and practice as children transition to and through kindergarten.