We used the UK Household Longitudinal Study to examine whether community type (inland or coastal) in adolescence (10–15 years) was associated with five adult health outcomes assessed over 11 waves of follow-up (2009–22). When the analyses were stratified on area deprivation, four of the five health outcomes – self-rated, long-standing illness, psychological distress and mental functioning - showed worse health in increasingly more deprived communities, and to a greater extent in the most deprived communities that are coastal. For all but self-rated health, associations were robust to additional adjustment for adolescent gender, ethnicity, household income, tenure, and life satisfaction.