>>37534813>>37534593>>37533687The demon's map was based on the entirety of Japan, where each city represented an entire Japanese prefecture.
Silent Hill = Shizuoka
Old City = Nagoya
High Tech = Kouchi
Birdon = Tottori
Font = Moji
Newtype = Niigata
Sugar = Sadou (play on Satou)
Stand = Sendai
Kanto = Kanto
Blue Forest = Aomori
Prince = Fuji
North = Somewhere in Hokkaido
South = Somewhere in Kyushu
West = Somewhere in Kansai
The names all roughly translate to where they're based on. Kanto is based on Chubu and Kanto. Johto is based on Chubu, Kansai, and Shikoku. Hoenn is based on Kyushu. Sinnoh is based on Hokkaido.
The Sinjoh Ruins would presumably be in northwest Chubu or Tohoku, as that's the northern area between Johto and Sinnoh.