Mirsharai Upazila of Chittagong district, having an area of 482 square kilometers and consists of 16 unions. The unions are: Korerhat, Hinguli, Jorarganj, Dhoom, Osmanpur, Ichakhali, Katachhara, Durgapur, Mirsharai, Mithanala, Maghadia, Khaiyachhara, Mayani, Haitkandi, Wahedpur, Saherkhali.