The design shows a partial reproduction of a young person casting a vote. The ballot that the figure is holding reproduces the inscription ‘ANDORRA’. To the left of the figure there are the years that are being commemorated ‘1985’ and ‘2015’ (the latter is the year of issue of the coin as well). A shorter inscription of the commemoration surrounds the whole design ‘30è ANIVERSARI MAJORIA D’EDAT ALS 18 ANYS’ (30th anniversary Coming of Age at 18 years old).
The coin’s outer ring depicts the 12 stars of the European flag.