This study examines whether the longitudinal association between cumulative exposure to lower community attachment and adolescent health differs by gender. Using seven waves of the Korean Children and Youth Panel Survey spanning 2010-2016, this study examines the association between cumulative exposure to lower community attachment and self-rated health among Korean adolescents. This study estimated fixed-effects models to account for unobserved confounders at the individual level. Fixed-effects estimates revealed that cumulative exposure to lower community attachment is associated with a decreased likelihood of reporting excellent health. Starting from the initial exposure, girls' self-rated health continued to deteriorate over time. In contrast, boys' self-rated health decreased for up to 3 years of persistent exposure, but has since returned to preexposure levels. The association between cumulative exposure to lower levels of community attachment and a decline in self-rated health is more pronounced among girls than boys. Gender-specific community-based interventions during adolescence may be required to promote adolescent health and well-being. K E Y W O R D S adolescent, community attachment, cumulative exposure, gender, self-rated health Highlights • Community attachment (CA) is an important predictor of adolescent self-rated health (SRH). • SRH declines for up to five consecutive years in girls persistently exposed to lower CA. • Boys' SRH begins to return to pre-exposure levels following three years of decline. • To promote the health of adolescents, gender-specific community-based interventions are necessary.