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Official Pokémon sources do not specify how many Mew exist in the Pokémon universe. The Pokédex identifies Mew as #0151, the “New Species” Pokémon, but gives no population figure. That leaves a clear answer to the count question: it is unspecified in the official sources cited here—not one, not many, and not a number that can be inferred from game rules.

What the official Pokédex says about Mew

The official Pokédex entry for Mew lists it as #0151, Psychic type, in the “New Species” category, with gender unknown. It describes the Pokémon, but does not say how many exist. A Pokédex profile is not a census of the fictional world.

Why game numbers do not answer the lore question

Some Pokémon game details contain numbers or limits that can sound like clues about Mew’s population. They describe gameplay and hardware, not the number of Mew in the story.

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Let’s Go’s first-150 completion tally

Pokémon’s Let’s Go completion guidance says the first 150 Pokémon, from Bulbasaur through Mewtwo, are needed for the game’s stated Pokédex completion. It also says Mew, Meltan, and Melmetal do not count toward the final tally. This is a rule for completing those games’ Pokédex—not a claim that only one Mew exists, or that the fictional population has a particular size.

#1 Best Overall
Sale
Pokemon Mew 8" Plush - Officially Licensed - Generation One - Authentic Soft Stuffed Animal Toy Figure - Gift for Kids, Boys, Girls - 2+
  • Cute and cuddly 8" Pokémon Mew Plush Stuffed Animal is a must have for all Pokemon fans!
  • Gotta Catch 'Em All! This super soft plush figure is great to take wherever you go!
  • The Mew plush toy is inspired by Pokémon anime, trading cards, Let's Go!, Detective Pikachu, Sword and Shield, Scarlet and Violet, Nintendo video game series and more!
  • Makes a great gift for kids, boys and girls who love Pokemon. These authentic quality plushie figures are perfect gifts for Christmas, birthdays, Easter, holidays, Valentine's Day, stocking stuffer, basket stuffer and more - Your favorite Pokémon character is waiting for you!
  • Officially licensed Pokémon merchandise. Polyester. Measures approximately 8". Ages: 2+

Poké Ball Plus transfer limit

Pokémon Support’s Poké Ball Plus instructions say that the Mew on the accessory can be transferred one time into a single compatible Pokémon: Let’s Go, Pikachu! or Pokémon: Let’s Go, Eevee! game. Afterward, it is no longer available on that accessory to transfer to another game. That restriction applies to one accessory’s transfer, not to Mew’s fictional population.

So, is there only one Mew?

The official sources cited here do not establish that there is exactly one Mew, nor do they give evidence for a larger total. “Mythical,” a Pokédex completion rule, or a one-time transfer limit cannot be used to calculate how many Mew exist in the Pokémon universe. The accurate answer is that the number is unspecified.

Rank #2
Pokemon Center: Mew Pokemon Soda Pop Plush
  • It’s not just bodies that need refreshment: hearts do too. Ready your cup—this Mew Pokémon Soda Pop Plush is here to serve up eight daily glasses of bliss! As you drink in its delicious blend of candy-sweet colors and nostalgic embroidered eyes, the joy that bubbles up is as satisfying as an icy beverage on a summer day!
  • A Psychic-type Mythical Pokémon originally discovered in Kanto
  • Care Instructions: Surface wash only.
  • Item Dimensions: 3.9 x 5.5 x 5.9 inches (9.9 x 13.9 x 14.9 cm)
  • Pokémon Center Original
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What the Mew card collection can—and cannot—tell you

Pokémon’s Mythical Pokémon Collection—Mew product page documents a trading card collection launched on February 22, 2016, with a full-art promo card, collector’s pin, two Generations booster packs, and an online code card. That is a merchandise release, not a statement about Mew’s population. The page’s launch date also does not establish that the collection is currently available.

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Quick Recap

SaleBestseller No. 1
Pokemon Mew 8' Plush - Officially Licensed - Generation One - Authentic Soft Stuffed Animal Toy Figure - Gift for Kids, Boys, Girls - 2+
Pokemon Mew 8" Plush - Officially Licensed - Generation One - Authentic Soft Stuffed Animal Toy Figure - Gift for Kids, Boys, Girls - 2+
Cute and cuddly 8" Pokémon Mew Plush Stuffed Animal is a must have for all Pokemon fans!; Gotta Catch 'Em All! This super soft plush figure is great to take wherever you go!
$28.70
Bestseller No. 2
Pokemon Center: Mew Pokemon Soda Pop Plush
Pokemon Center: Mew Pokemon Soda Pop Plush
A Psychic-type Mythical Pokémon originally discovered in Kanto; Care Instructions: Surface wash only.
$34.38
Bestseller No. 3
Pokemon Mew Sleeping Plush - 18-Inch Premium Plush in Sleeping Pose
Pokemon Mew Sleeping Plush - 18-Inch Premium Plush in Sleeping Pose
POKÉMON PLUSH: Choose to snooze with Mew, the New Species Pokémon; SUPER SIZE: Large-scale Pokémon plush rounds out at 18-inches
$42.76
SaleBestseller No. 4
Pokémon Toys
Pokémon Toys
PKW4847
$26.37
Bestseller No. 5
Takara Tomy: Pokemon MonColle MS-17 Mew
Takara Tomy: Pokemon MonColle MS-17 Mew
(C) Nintendo, Creatures, Game Freak, TV Tokyo, ShoPro, JR Kikaku (C) Pokémon; Does not use batteries
$9.82
Best Value
Takara Tomy: Pokemon MonColle MS-17 Mew
  • (C) Nintendo, Creatures, Game Freak, TV Tokyo, ShoPro, JR Kikaku (C) Pokémon
  • Does not use batteries
Rank #4
Sale
Rank #3
Pokemon Mew Sleeping Plush - 18-Inch Premium Plush in Sleeping Pose
  • POKÉMON PLUSH: Choose to snooze with Mew, the New Species Pokémon
  • SUPER SIZE: Large-scale Pokémon plush rounds out at 18-inches
  • UNIQUE STYLE: Mew is splayed out in a unique sleeping posture
  • PREMIUM PLUSH: Plush is made of super-soft material that’s perfect for cuddling
  • OFFICIAL PRODUCT: Officially licensed Pokémon product from Jazwares

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