To change the country, scroll to the bottom of any Pokémon Center page and select the country displayed on the bottom left.
And, under Select your region, select the region you want.
Alternatively, you can navigate directly to the regional Pokémon Center sites via the URLs below.
- US: https://www.pokemoncenter.com/
- Canada: https://www.pokemoncenter.com/en-ca
- UK: https://www.pokemoncenter.com/en-gb