Federal data from the National Center on Education Statistics (NCES) offers a potentially surprising revelation: Private school teachers have higher turnover rates than their public school counterparts, and it's not particularly close.
The data below capture what NCES calls the “leaver” rate. NCES regularly surveys teachers, and it divides respondents into three categories: stayers, movers, and leavers. Stayers are teachers who were teaching in the same school in the current school year as in the base year. Movers are teachers who were still teaching in the current school year, but who had moved to a different school. And the leavers, represented in the graph, are teachers who left the profession entirely.