Pokémon Pokopia features 300 Pokémon selected from Generations I through IX. The figure describes the game’s chosen roster rather than the total number of Pokémon species in the entire franchise.
The broad generational range gives Pokopia access to Pokémon from the original Kanto era through the ninth generation. That variety supports the game’s habitat system, because different Pokémon can be encouraged to appear by creating surroundings suited to them.
The number can be confused with other important Pokédex totals. The original games introduced 151 Pokémon, while later generations expanded the worldwide roster far beyond that figure. Pokopia does not attempt to include every Pokémon species; it uses a curated selection of 300 for its life-simulation world. This makes the number a game-specific roster count, not a franchise-wide total.