 As of June 2020, 40 states have set an absolute minimum marriage age by statute, which vary between 14 and 18.In recent years, several states have increased their marriageable age, including in 2020, Idaho, Indiana and Minnesota.Although in 10 states there is no set minimum age by statute, the traditional common law minimum age is 14 for boys and 12 for girls - ages which have been confirmed by case law in some states.