Within takes place in Denoril, also referred to as the Land of Five Provinces.  Here's a closer look at the map, designed by artist Francesca Baerald.

FBaerald_DenorilMap_HighRes[1].jpg

Denoril is ruled by the Council of Lords.  Each ruling council seat is designated by the Earl of one of the five provinces.  The five provinces are: Barden's Reach, The Dagger Coast, Karnell, The Boroughs, and New Dilith.