Major casinos and sportsbooks all operate websites and mobile apps which you can use to legally place bets anywhere in the state. Sportsbooks operate at numerous Atlantic City casinos and several authorized racetracks.Additionally, New Jersey’s laws allowing online gambling apply to sports betting. NJ Sports Betting Sites: The Best New Jersey Has to Offerįrom the Final Four to Fantasy Football, the Kentucky Derby to the Monaco Grand Prix, the Super Bowl to the Olympic Games, New Jersey is the place to enjoy the thrill of sports betting.With a history dating back to 19th-Century horse-race tracks, sports betting has faced a long road to legality in New Jersey, the obstacles ranging from constitutional bans to constitutional amendments, to legal challenges-and all the way to the US Supreme Court.Nevertheless, with a few restrictions, sports betting is now completely legal in New Jersey.