ahead of the 2014 general election, the election commission renumbered the seat for sandwip upazila from chittagong-16 to chittagong-3, bumping up by one the suffix of the former constituency of that name and the higher numbered constituencies in the district. thus chittagong-9 covers the area previously covered by chittagong-8. previously chittagong-9 encompassed chittagong city corporation wards 11 through 14, and 24 through 26, and part of ward 8.