Generation facts
The games arrive in generations, and each one adds new Pokémon and usually a new region. Here is how the Pokédex grew, generation by generation.
25 facts. Each one says how we know it.
Generation 1: Kanto: 151
Generation 1 added 151 new Pokémon, from Bulbasaur (#1) to Mew (#151). Its region is Kanto.
How we know: Counted the Pokémon in each generation in the Pokédex data on pokee.si.
Generation 2: Johto: 100
Generation 2 added 100 new Pokémon, from Chikorita (#152) to Celebi (#251). Its region is Johto.
How we know: Counted the Pokémon in each generation in the Pokédex data on pokee.si.
Generation 3: Hoenn: 135
Generation 3 added 135 new Pokémon, from Treecko (#252) to Deoxys (#386). Its region is Hoenn.
How we know: Counted the Pokémon in each generation in the Pokédex data on pokee.si.
Generation 4: Sinnoh: 107
Generation 4 added 107 new Pokémon, from Turtwig (#387) to Arceus (#493). Its region is Sinnoh.
How we know: Counted the Pokémon in each generation in the Pokédex data on pokee.si.
Generation 5: Unova: 156
Generation 5 added 156 new Pokémon, from Victini (#494) to Genesect (#649). Its region is Unova.
How we know: Counted the Pokémon in each generation in the Pokédex data on pokee.si.
Generation 6: Kalos: 72
Generation 6 added 72 new Pokémon, from Chespin (#650) to Volcanion (#721). Its region is Kalos.
How we know: Counted the Pokémon in each generation in the Pokédex data on pokee.si.
Generation 7: Alola: 88
Generation 7 added 88 new Pokémon, from Rowlet (#722) to Melmetal (#809). Its region is Alola.
How we know: Counted the Pokémon in each generation in the Pokédex data on pokee.si.
Generation 8: Galar: 96
Generation 8 added 96 new Pokémon, from Grookey (#810) to Enamorus (#905). Its region is Galar.
How we know: Counted the Pokémon in each generation in the Pokédex data on pokee.si.
Generation 9: Paldea: 120
Generation 9 added 120 new Pokémon, from Sprigatito (#906) to Pecharunt (#1025). Its region is Paldea.
How we know: Counted the Pokémon in each generation in the Pokédex data on pokee.si.
Biggest generation: Generation 5
Generation 5 is the biggest, with 156 new Pokémon. That is 84 more than the smallest generation.
How we know: Counted the Pokémon in each generation in the Pokédex data on pokee.si.
Smallest generation: Generation 6
Generation 6 is the smallest, with 72 new Pokémon.
How we know: Counted the Pokémon in each generation in the Pokédex data on pokee.si.
Nine generations: 9
The Pokédex has 9 generations and 1,025 Pokémon. The regions, in order, are Kanto, Johto, Hoenn, Sinnoh, Unova, Kalos, Alola, Galar and Paldea.
How we know: Counted the generations and Pokémon in the Pokédex data on pokee.si.
The first Pokémon: #1
Bulbasaur is number 1 in the Pokédex, and Pecharunt is the newest at number 1025.
How we know: Read the lowest and highest Pokédex numbers in the data on pokee.si.
First Fire type: #4
Charmander (#4) is the first Fire type in the Pokédex.
How we know: Found the lowest Pokédex number of any Fire-type Pokémon in the Pokédex data on pokee.si. This is by Pokédex number, not by when the type arrived in the games.
First Electric type: #25
The first Electric type in the Pokédex is Pikachu, number 25.
How we know: Found the lowest Pokédex number of any Electric-type Pokémon in the Pokédex data on pokee.si. This is by Pokédex number, not by when the type arrived in the games.
First Ice type: #87
Dewgong (#87) is the first Ice type in Pokédex order. It is a Water/Ice type.
How we know: Found the lowest Pokédex number of any Ice-type Pokémon in the Pokédex data on pokee.si. This is by Pokédex number, not by when the type arrived in the games.
First Ghost type: #92
Gastly (#92) is the first Ghost type in the Pokédex.
How we know: Found the lowest Pokédex number of any Ghost-type Pokémon in the Pokédex data on pokee.si. This is by Pokédex number, not by when the type arrived in the games.
First Dragon type: #147
Dratini (#147) is the first Dragon type in the Pokédex.
How we know: Found the lowest Pokédex number of any Dragon-type Pokémon in the Pokédex data on pokee.si. This is by Pokédex number, not by when the type arrived in the games.
First Steel type: #81
Magnemite (#81) is the first Steel type in Pokédex order. It is an Electric/Steel type.
How we know: Found the lowest Pokédex number of any Steel-type Pokémon in the Pokédex data on pokee.si. This is by Pokédex number, not by when the type arrived in the games.
First Dark type: #197
Umbreon (#197) is the first Dark type in the Pokédex.
How we know: Found the lowest Pokédex number of any Dark-type Pokémon in the Pokédex data on pokee.si. This is by Pokédex number, not by when the type arrived in the games.
First Fairy type: #35
Clefairy (#35) is the first Fairy type in Pokédex order.
How we know: Found the lowest Pokédex number of any Fairy-type Pokémon in the Pokédex data on pokee.si. This is by Pokédex number, not by when the type arrived in the games.
Most dual types: Generation 9
Generation 9 has the biggest share of dual types: 77 of its 120 Pokémon have two types (64%).
How we know: Counted the Pokémon with two types in each generation in the Pokédex data on pokee.si.
Strongest generation on average: Generation 9
Generation 9 Pokémon have the highest average stat total, 457.4. Generation 3 has the lowest, 403.7.
How we know: Averaged the base stat total of the Pokémon in each generation in the Pokédex data on pokee.si.
Most Legendary and Mythical: Generation 7
Generation 7 introduced 16 Legendary and Mythical Pokémon, more than any other generation.
How we know: Counted Pokémon the Pokédex data on pokee.si marks Legendary or Mythical, by generation.
Starter families: 81
81 Pokémon are starters or their evolutions: exactly 9 from every generation.
How we know: Counted the Pokémon the Pokédex data on pokee.si tags as starters (a starter and its evolutions), by generation.