We examined work-related rumination among 288 school counselors and its relationship to elements of their professional well-being. The composite of affective rumination, problem-solving pondering, and detachment individually predicted burnout, turnover intentions, job satisfaction, and work engagement. Our findings indicated that higher affective rumination coupled with lower problem-solving pondering predicted increased burnout and turnover intentions and decreased job satisfaction and work engagement. We describe the implications of these findings for school counselors and educators.