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‹ National Pokédex

#0304Hoenn · Generation 3

Aron

CokodoraIron Armor Pokémon

SteelRock

When Aron evolves, its steel armor peels off. In ancient times, people would collect Aron’s shed armor and make good use of it in their daily lives. Pokédex, Shield

Height
0.4 m
Weight
60 kg
Habitat
Mountain
Abilities
Sturdy, Rock Head, Heavy Metal (hidden)
14Anime episodes
15Games found in
5Japanese cards
2003Anime debut

The Story

What the Pokédex says

  • Shield

    When Aron evolves, its steel armor peels off. In ancient times, people would collect Aron’s shed armor and make good use of it in their daily lives.

  • Sword

    It eats iron ore—and sometimes railroad tracks— to build up the steel armor that protects its body.

  • Alpha Sapphire

    Aron has a body of steel. With one all-out charge, this Pokémon can demolish even a heavy dump truck. The destroyed dump truck then becomes a handy meal for the Pokémon.

  • Omega Ruby

    This Pokémon has a body of steel. To make its body, Aron feeds on iron ore that it digs from mountains. Occasionally, it causes major trouble by eating bridges and rails.

5 more entries from older games
  • Y

    When it evolves, it sheds the steel carapace that covered its whole body and develops a new one.

  • X

    It usually lives deep in mountains. However, hunger may drive it to eat railroad tracks and cars.

  • White 2

    In order to build up its steel body, it eats iron ore. This pesky Pokémon is known to eat railroad tracks.

  • LeafGreen

    It eats iron to build its steel body. It is a pest that descends from mountains to eat bridges and train tracks.

  • Emerald

    A Pokémon that is clad in steel armor. A new suit of armor is made when it evolves. The old, discarded armor is salvaged as metal for making iron products.

Evolution

The Aron line

  • Aron LaironLevel 32
  • Lairon AggronLevel 42

Where to find it

Found in 15 games

Regions: Hoenn · Orre · Sinnoh · Johto · Unova · Kalos · Galar

RubyHoenn4 locations
LocationHowLevel
Granite Cave · Granite Cave (1F/small room)Walking in tall grass or a cave7-8
Granite Cave · Granite Cave (B1F)Walking in tall grass or a cave9-11
Granite Cave · Granite Cave (B2F)Walking in tall grass or a cave10-12
Victory RoadWalking in tall grass or a cave36
SapphireHoenn4 locations
LocationHowLevel
Granite Cave · Granite Cave (1F/small room)Walking in tall grass or a cave7-8
Granite Cave · Granite Cave (B1F)Walking in tall grass or a cave9-11
Granite Cave · Granite Cave (B2F)Walking in tall grass or a cave10-12
Victory RoadWalking in tall grass or a cave36
EmeraldHoenn4 locations
LocationHowLevel
Granite Cave · Granite Cave (1F/small room)Walking in tall grass or a cave7-8
Granite Cave · Granite Cave (B1F)Walking in tall grass or a cave9-11
Granite Cave · Granite Cave (B2F)Walking in tall grass or a cave10-12
Victory RoadWalking in tall grass or a cave36
XDOrre1 location
LocationHowLevel
PokespotFinding a Wild Pokemon at any of the three Pokespots in Pokemon XD: Gale of Darkness.10-21
DiamondSinnoh1 location
LocationHowLevel
Fuego IronworksWalking in tall grass or a cave29-30
PlatinumSinnoh1 location
LocationHowLevel
Fuego IronworksWalking in tall grass or a cave30-31
HeartGoldJohto1 location
LocationHowLevel
Johto Safari ZoneWalking in tall grass or a cave44-45
SoulSilverJohto1 location
LocationHowLevel
Johto Safari ZoneWalking in tall grass or a cave44-45
Black 2Unova2 locations
LocationHowLevel
Guidance ChamberWalking in tall grass or a cave29-30
Mistralton CaveWalking in tall grass or a cave29-30
White 2Unova2 locations
LocationHowLevel
Guidance ChamberWalking in tall grass or a cave29-30
Mistralton CaveWalking in tall grass or a cave29-30
XKalos1 location
LocationHowLevel
Terminus Cave · Terminus Cave (1F), Terminus Cave (B1F left), Terminus Cave (B1F right), Terminus Cave (B2F), Terminus Cave (Zygarde's Chamber)Encountering 5 Pokemon within grass, flowers, or within a cave24
Omega RubyHoenn2 locations
LocationHowLevel
Granite Cave · Granite Cave (B1F), Granite Cave (B2F)Encountering 5 Pokemon within grass, flowers, or within a cave6
Victory Road · Victory Road (1F), Victory Road (B1F)Encountering 5 Pokemon within grass, flowers, or within a cave20
Alpha SapphireHoenn2 locations
LocationHowLevel
Granite Cave · Granite Cave (B1F), Granite Cave (B2F)Encountering 5 Pokemon within grass, flowers, or within a cave6
Victory Road · Victory Road (1F), Victory Road (B1F)Encountering 5 Pokemon within grass, flowers, or within a cave20
Sword: The Crown TundraGalar8 locations
LocationHowLevel
Ballimere LakeSpecial overworld spawn in a fixed location.63
Ballimere Lake · Ballimere Lake (Max Den D)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle.15-40
Frigid SeaCatch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle.15-40
Giant's Bed · Giant's Bed (Max Den A), Giant's Bed (Max Den J), Giant's Bed (Max Den N)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle.15-40
Lakeside CaveWalking in the overworld60-65
Path to the PeakCatch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle.15-40
Slippery SlopeCatch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle.15-40
Snowslide Slope · Snowslide Slope (Max Den A), Snowslide Slope (Max Den C)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle.15-40
Shield: The Crown TundraGalar8 locations
LocationHowLevel
Ballimere LakeSpecial overworld spawn in a fixed location.63
Ballimere Lake · Ballimere Lake (Max Den D)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle.15-40
Frigid SeaCatch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle.15-40
Giant's Bed · Giant's Bed (Max Den A), Giant's Bed (Max Den J), Giant's Bed (Max Den N)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle.15-40
Lakeside CaveWalking in the overworld60-65
Path to the PeakCatch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle.15-40
Slippery SlopeCatch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle.15-40
Snowslide Slope · Snowslide Slope (Max Den A), Snowslide Slope (Max Den C)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle.15-40

Encounter tables cover the main series through Sword & Shield. Newer titles are added as their data lands.

In the anime

14 episodes on record

First appearanceA Hole Lotta TroubleAG022 · Ruby & Sapphire · first aired in Japan April 24, 2003

Major appearances 2

Ruby & Sapphire

  • AG022A Hole Lotta Trouble2003

XY special

  • XYS02Mega Evolution Special II2014
Minor appearances · 12 episodes

Ruby & Sapphire

  • AG023Gone Corphishin'2003
  • AG060Delcatty Got Your Tongue2004
  • AG068A Double Dilemma2004
  • AG077A Fan with a Plan2004
  • AG159Off the Unbeaten Path2006

Diamond & Pearl

  • DP110Steeling Peace of Mind!2009
  • DP111Saving the World from Ruins!2009

Movie

  • M11Giratina and the Sky Warrior2008
  • M16Genesect and the Legend Awakened2013
  • M19Volcanion and the Mechanical Marvel2016

Pikachu short

  • PK13Pikachu's Summer Festival2004

Black & White special

  • BWS01Title not yet recorded2013

Japanese cards

5 cards across 5 sets

Mask of Change

20241 card
View full set

Paradigm Trigger

20221 card
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Double Crisis

20151 card
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Miracle Crystal

20061 card
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Mirage Forest

20051 card
View full set

Species data from the games via PokéAPI; anime appearances indexed from Bulbapedia. Artwork © Nintendo / Creatures / GAME FREAK. Not affiliated with Nintendo / The Pokémon Company.