This study asks: What is the relationship between principal turnover and school performance? We use data on all Colorado public schools for the years 2013 through 2018 to examine the relationship between turnover and school performance. Analyses included difference-in-difference and ordinary least squares regression after first differencing. Results indicated almost 50% of schools experienced principal turnover. The number of turnover events ranged from zero to three. Results showed no significant differences in school performance based on turnover status or number of leadership changes.