PennsylvaniaPennsylvania legalized online casinos in 2017, becoming the fourth state to do so. This means that players in New Jersey have a vast selection of online casino games at their disposal, ranging from classic slots to table games and poker. New Jersey New Jersey led the way in legalizing online casinos back in 2013, and today it remains a thriving market with many land-based casinos also operating online. States Where Online Casinos Are LegalAs of 2023, online casinos are legal in the following states: In this article, we will cover the states where online casinos are legal, including the different types of online gambling allowed in each state, and the regulations surrounding online casinos. As a result, many players are not sure about which states have legal online casinos. While land-based casinos have been around for decades, online casinos have only recently gained traction. As online gambling gains popularity, more states in the US are legalizing online casinos.