As you can imagine, there are given territories of ghouls that are separated into areas called districts (similar to how they have wards in Japan). These districts generally help divide the CCG properly across the United Kingdom and where both Ghoul and Bureau Investigators alike help monitor and suppress ghoul activity. In RP, these districts will help provide for common areas which ghouls may go to for their own purposes.
District 1 - The first district consists of the counties: Essex, London, and Hertsfordshire. The most of ghoul activity can be found in common cities like London.
District 2 -
District 3 -