Where to catch, #0056
Mankey in HeartGold and SoulSilver: 2 places, levels 13 to 15
4 encounters by area
Places
Route 42 and Route 9
Other games
Also found in 11 other games
Red and Green (Japan)Red and BlueYellowGold and SilverFireRed and LeafGreenDiamond and PearlPlatinumX and YSun and MoonUltra Sun and Ultra MoonLet's Go, Pikachu and Eevee