The sunny state of California is one of the most lucrative gambling strongholds in all of America. So without further ado, here are what states you can gamble at 18. In this overview we will quickly run through each one of those states, answering the question of what states you can gamble at 18 years of age, paying extra attention to the most popular gambling locations within these select locations. Published on: 3 November 2020 Where to Gamble in the US at 18