What is the setting in the book, J: A Novel?

The country in which the novel takes place is not named. Its former incarnation is never named. Based on clues (such as names like Ashbrittle or Ludgvennok), it can be presumed the country is either one in the United Kingdom or in Scandinavia. Fictional locations in the novel include Port Reuben, St. Eber, and Ashbrittle.