INTRODUCTION:
Drowning caused 236000 deaths in 2019 worldwide (1). Swimming skills acquired in childhood persist throughout adulthood providing lifelong protection (2). This study examines whether countries with mandatory swimming education demonstrate lower overall drowning mortality and reduced school-age drowning compared to countries without universally accessible swimming programs.

METHODS:
Drowning mortality rates were compared with published statistics from European and other countries. Countries were categorized by presence of mandatory swimming education policies.

RESULTS:
Countries with long-established mandatory swimming programs showed markedly lower overall drowning mortality. Iceland (mandatory since 1943): 0.3 per 100000 (3); Slovenia (mandatory 20-hour program since 1963): 0.8 per 100000 (4,5); versus countries without similar programs and higher rates: Poland 2.0 per 100000, Latvia 5.6 per 100000 (6–8). For children drowning remains a leading cause of death globally, yet Slovenia recorded only 4 drownings in individuals under 18 years in 6 years. In the United States where there is no universal mandate for swimming education drowning rate is 0.5 for ages 5-13 years and the third leading cause of unintentional injury death until 19 years of age (9). China shows the intervention effect in real-time with a 50.3% reduction in drowning mortality under the age of 20 from 6.60 to 3.28 per 100000 between 2013-2021 after implementing mandatory swimming lessons (10).

CONCLUSIONS:
Mandatory swimming education incorporated in the school curriculum correlates with lower overall drowning mortality. The persistent protective effect of childhood swimming education supports universal, equitable access to swimming instruction as a cost-effective public health intervention. Countries eliminating such programs risk reversing decades of mortality reduction, particularly affecting socioeconomically disadvantaged populations unable to access private swimming instruction.