This study compares levels of self-reported academic engagement between female graduates of single-sex and coeducational private high schools using nationwide data on these students at the point of college entry. This study demonstrates that school gender remains a significant predictor of self-reported academic engagement when controlling for other school characteristics. The results reveal that women attending all-girls high schools report higher levels of academic engagement across numerous fronts: studying individually or in groups, interacting with teachers, tutoring other students, and getting involved in student organizations.