Principal turnover contributes to many factors and effects that school districts encounter. It is important to ensure that schools have leaders employed for a significant amount of time to bring about positive changes. Schools need stability to maintain progress, whether it is to foster a positive school environment, improve student achievement, or enhance school capacity. Research indicates that leadership is second only to classroom instruction regarding its impact on students' learning. (Leithwood et al., 2004). This paper summarizes studies examining the factors contributing to principal turnover and its effects.