by Companiganj (Noakhali) upazila on the north, bay of bengal on the south, Sitakunda and Mirsharai upazilas, and Sandwip Channel on the east, Noakhali Sadar upazila, Hatiya Island and Meghna estuary on the west.

Sandwip upazila consists of 14 union parishads, 31 mouzas and 34 villages.

Sandwip Upazila is located in Chittagong District. Upazilla(s)/Thana(s) in Chittagong are Anwara Upazila, Bandar (Chittagong Port) Thana, Banshkhali Upazila, Boalkhali Upazila, Chandanaish Upazila, Chandgaon Thana, Double Mooring Thana, Fatikchhari Upazila, Hathazari Upazila, Kotwali Thana, Lohagara Upazila, Mirsharai Upazila, Pahartali Thana, Panchlaish Thana, Patiya Upazila, Rangunia Upazila, Raozan Upazila, Sandwip Upazila, Satkania Upazila, Sitakunda Upazila.