Forsyth County, North Carolina has the third lowest rate of upward economic mobility of any other county in the United States. One of the strongest correlates of upward mobility is the quality of schools in the local system. Using 2018 and 2017 NC Public School Report Card (SRC) data for Forsyth County elementary schools, I find that the annual rate of teacher turnover is a significant predictor of student proficiency levels. Schools where the majority of students test at proficient levels tend to have lower teacher turnover, holding constant other important factors. Schools with high turnover disproportionately serve economically disadvantaged children. Reducing turnover can improve student outcomes in elementary school, especially for those students who come from underprivileged families. I argue that the Forsyth County school system can assist in reversing low mobility rates by targeting teacher turnover, especially in low-performing schools.