The article outlines the current state of legal sports betting across the United States, highlighting which states have active markets and the regulatory frameworks governing them. States such as New Jersey, Nevada, and Colorado have launched operational sports betting markets, allowing varying degrees of online and retail wagering. The article also notes states where legal betting is limited to specific venues or restricted in the types of bets permitted. Beyond active markets, the piece details ongoing legislative efforts aimed at legalizing or expanding sports betting in additional states. This includes descriptions of proposals under consideration and the regulatory challenges faced. The information is presented on a state-by-state basis, providing a granular view of the legal landscape. The article serves as a resource to understand both the opportunities and limits within the US sports betting market, emphasizing the patchwork nature of regulation and market availability. It underscores the importance of regulatory developments and legislative action in shaping the future of betting legalization across the country.