Det finns i Nordsjön .
Azkaban has existed since the fifteenth century and was not originally a prison at all. The island in the North Sea upon which the first fortress was built never appeared on any map, Muggle or wizarding, and is believed to have been created, or enlarged, by magical means.
Cornelius Fudge identifierar det som i mitten av Nordsjön
‘… I’ve just come from Azkaban,’ Fudge had panted, tipping a large amount of water out of the rim of his bowler hat into his pocket. ‘Middle of the North Sea, you know, nasty flight … the Dementors are in uproar –’ he shuddered ‘– they’ve never had a breakout before.
Harry Potter and the Half Blood Prince: CHAPTER ONE — The Other Minister
Även om det verkar strida mot det faktum att Sirius simmade tillbaka till stranden från den. Vi rekommenderas också att det är till södra i Hogwarts.
I swam as a dog back to the mainland … I journeyed north and slipped into the Hogwarts grounds as a dog … I’ve been living in the Forest ever since … except when I come to watch the Quidditch, of course … you fly as well as your father did, Harry …’
Harry Potter and the Prisoner of Azkaban: CHAPTER NINETEEN – The Servant of Lord Voldemort
Eftersom Hogwarts är känt för att vara i norra Skottland, är konsekvensen att Azkaban är någonstans utanför kusten av Yorkshire, Durham, Northumberland eller möjligt södra Skottland.