Pewter City/Demographics

Pokémon Red, Blue, and Yellow
In, the population of Pewter City is 28.

Pokémon Gold, Silver, and Crystal
In, the population of Pewter City is 18. This decrease is due in part to the closing of the Pewter Museum of Science.

Pokémon FireRed and LeafGreen
In, the population of Pewter City is 33.

Pokémon HeartGold and SoulSilver
In, the population is 30. Its decline in population could be due to the Pewter Museum of Science's missing second floor, which was present in FireRed and LeafGreen.