To get Eevee in Pokémon FireRed, you need to go to Celadon City and pick up a gift Eevee from a hidden rooftop room; there’s only one Eevee per playthrough in the base game.

Quick Scoop: How to Get Eevee in FireRed

1. When you can first get Eevee

You can grab Eevee once you reach Celadon City , which is normally around the time you’re dealing with the 3rd–4th gyms, depending on your route.

There’s no wild Eevee encounter in FireRed/LeafGreen; this Celadon gift is the only built‑in method in the vanilla game.

2. Exact route to Eevee (step‑by‑step)

Follow these in‑game steps once you’re in Celadon City:

  1. Heal at the Celadon City Pokémon Center and leave at the front door.
  1. Walk behind the Pokémon Center: go right, then up through the gap in the trees so you’re on the narrow back path.
  1. You’ll see the back entrance to a tall multi‑floor building; enter that back door.
  1. Inside, take the stairs all the way up several floors until you come out on the roof area.
  1. On the rooftop, go over to the small room/doorway on the other side and head inside.
  1. In this small room, there’s an NPC (often the “I know everything” guy) and a Poké Ball on the table ; interact with the Poké Ball to receive your gift Eevee.

You’re not “stealing” it—the NPC is effectively gifting you Eevee, and the game never penalizes you for taking it.

3. How many Eevee you can get

  • In standard FireRed/LeafGreen, there is only one Eevee available per save file via this Celadon gift.
  • Because you only get one, you can only pick one of the three classic Eeveelutions in an unmodified run (without breeding or trading): Jolteon, Vaporeon, or Flareon.

Some players use trading or breeding (on Four Island’s Day Care with a Ditto) to create more Eevee and eventually have all evolutions on one cart, but that needs post‑game islands access and extra setup.

4. Evolving Eevee in FireRed

Eevee doesn’t evolve by level in FireRed; you use elemental stones.

  • Use a Thunder Stone to evolve Eevee into Jolteon.
  • Use a Water Stone to evolve Eevee into Vaporeon.
  • Use a Fire Stone to evolve Eevee into Flareon.

Once you evolve it, you cannot revert it to Eevee, so choose your evolution carefully if you’re only using the one you get in Celadon.

Here’s a quick view:

[5][2] [2][5] [5][2]
Stone Resulting evolution
Thunder Stone Jolteon (Electric‑type)
Water Stone Vaporeon (Water‑type)
Fire Stone Flareon (Fire‑type)

5. Forum‑style tip: getting Eevee earlier in your run

Players discussing “how early can you get Eevee” usually point out that once you’ve cleared Rock Tunnel and reached the central part of the map, you can head toward Celadon City fairly soon and grab Eevee right after unlocking access there.

That makes Eevee a solid mid‑game pickup you can shape into your preferred role with the right stone.

“Once you exit Rock Tunnel, you can get Eevee after just a bit more progress, then head through the underground path to reach Celadon and claim it from the rooftop room.”

TL;DR:

  • Reach Celadon City → go behind the Pokémon Center → enter the back door of the tall building → climb to the roof → go into the small room and grab the Poké Ball on the table to get Eevee.
  • You only get one Eevee natively, and you evolve it with a Thunder, Water, or Fire Stone into Jolteon, Vaporeon, or Flareon.

Information gathered from public forums or data available on the internet and portrayed here.