That said, legal sports betting seems to be more of a matter of when rather than if.Ĭalifornia’s closest brush with legal sports betting occurred after four competing ballot measures emerged in 2021. Some groups wish to legalize retail sportsbooks, others seek legal sports betting apps in California, and yet others want to ban sports betting outright. As the most populous state in the Union and home to an economy that would rank number five in the world if it was its own country, California is the biggest prize in the legal US sports betting industry. Legal sports betting will likely come to California at some point, but what form it will take remains uncertain. Each maintains a physical presence in the US, which means they are all subject to state and federal law. The above betting sites are open to customers from California. 2023-2024 California Sports Betting Proposals.