The Coranum Sector was the oldest and most prestigious sector of Cardassia City on Cardassia Prime. Lying to the north of the city, it was a residential area populated by stately buildings and wide thoroughfares dating back to the early Union. (DS9 novel: A Stitch in Time)
The Coranum Sector was the most exclusive area of the city, and was home to many important individuals and their families, including Barkan Lokar (DS9 novel: A Stitch in Time), Kotan Pa'Dar, and Mikor Khevet. (DS9 novel: The Never-Ending Sacrifice)