 A ceremony headed by the sultan on 9 June 2008 saw the official proclamation of that part becoming Johor's 10th district, then named Ledang District after the eponymous mountain located within its borders.The district was then renamed Tangkak District at the end of 2015 by a decree of Sultan Ibrahim Ismail to preserve the historical value of traditional name of places in the state.Tangkak District is divided into 6 mukims