Adolescents with type 1 diabetes (TID) and their parents depend on school nurses to keep students safe in school. Parent satisfaction with T1D care is impacted by school factors including school nurse presence. The purpose of this study was to determine the relationships among parental satisfaction with diabetes care in school, parental report of diabetes-related safety, adolescent report of school nurse helpfulness, and school nurse presence represented by school nurse to student ratios. The sample consisted of 89 parent-adolescent dyads. Adolescents 10-16 years old with T1D completed a questionnaire that included perceptions of school nurse helpfulness. Parents completed a questionnaire that included perceptions of T1D safety and satisfaction. Diabetes-related safety was positively correlated with parental satisfaction and school nurse helpfulness and inversely correlated with age and school nurse to student ratios. Findings validate the importance of school nurse presence to adolescents with T1D and their parents with implications for school nursing policy, practice, and research.