Pokémon world
An unnamed nation is the setting for all Pokémon games so far, divided up into several smaller regions. It is located on the planet that the series calls home.
According to the anime novelizations, the capital of this nation is Tōkyo City, though this capital has not been mentioned in any other medium. The political body residing in this capital is unknown as well.
The nation shares a Pokédex listing, known as the National Dex, which begins with the starter Pokémon of Kanto, and has reached its known end with a 493rd member, Arceus. Each region also has its own regional Pokédex, consisting of a local variation on the numerical order.
The nation's known geography is similar to that of Japan on a much larger scale, with each of the known regions corresponding to a portion of the country.
Regions
Subnational divisions are known as regions, each with their own similarities and differences. A list of known regions is below.
Currently unknown
These regions are at this moment unknown for their locations because it's been said they are far away from Kanto, Hoenn and Orre.