The goal of this study is to: (1) provide an overview of the characteristics of 2018-2019 MCPS school principals at each school level (elementary, middle, and high school); (2) examine the factors associated with principals leaving their positions; (3) explore the turnover of school principals in the last nine years in MCPS and its relationship with specified school factors; and (4) investigate if there is a relationship among specific school factors and principal tenure (new or veteran). This study addressed four questions: (1) What are the demographic characteristics of 2018-2019 MCPS school principals? Do these characteristics differ among schools with different levels of poverty and student demographic composition (school complexity)?; (2) What is the principal attrition rate in MCPS? What principal and school characteristics are associated with the likelihood of a principal leaving the position?; (3) What is the extent of principal turnover across MCPS schools? Do school factors (such as poverty, complexity, academic performance, and climate) differ between schools with three or more principals and schools with two or fewer principals in the last nine years?; and (4) Is veteran principal status associated with school factors, such as school climate, classroom teacher turnover, and academic performance in literacy and mathematics? Does this association vary by school complexity? Descriptive analyses were used to summarize information on demographic characteristics, principal attrition by type of exit (retirement, promotion, transfer, or resignation/termination), and the distribution of schools by principal turnover. Further, Chi-square tests, binary logistic regression, or factorial analysis of variance procedures analyses were used to examine the relationships between principal and school characteristics.