Halloween Event 2021
Pokemon Locations
Brought to you by: Unofficial PokéOne Guide
Halloween Event 2021
| Location | Pokemon | Time of Day | Encounter Method | Rarity | Additional Notes |
| Hallow Island Ferry | Pokémon | Time | Method | Rarity | Notes |
| Mysery Town | Pokémon | Time | Method | Rarity | Notes |
| Hoothot | N | Grass | |||
| Haunter | Any | Grass | |||
| Meowth | Any | Grass | |||
| Rattata | Any | Grass | |||
| Parasect | Any | Grass | |||
| Raticate | Any | Grass | |||
| Gastly | Any | Grass | |||
| Drakes Inn | Pokémon | Time | Method | Rarity | Notes |
| Stokers Manor | Pokémon | Time | Method | Rarity | Notes |
| Island Sewers | Pokémon | Time | Method | Rarity | Notes |
| Zubat | Any | Floor | |||
| Gastly | Any | Floor | |||
| Haunter | Any | Floor | |||
| Raticate | Any | Floor | |||
| Gligar | Any | Floor | |||
| Krabby | Any | Floor | |||
| Parasect | Any | Floor | |||
| Kingler | Any | Floor | |||
| Island Sewers Lower Level | Pokémon | Time | Method | Rarity | Notes |
| Zubat | Any | Floor | |||
| Gastly | Any | Floor | |||
| Haunter | Any | Floor | |||
| Spiritomb | Any | Floor | |||
| Event-exclusive | Dhelmise | Any | Floor | ||
| Raticate | Any | Floor | |||
| Gligar | Any | Floor | |||
| Krabby | Any | Floor | |||
| Parasect | Any | Floor | |||
| Kingler | Any | Floor | |||
| Magikarp | Any | Surfing | |||
| Poliwag | Any | Surfing | |||
| Dewgong | Any | Surfing | |||
| Chinchou | Any | Surfing | |||
| Feebas | Any | Surfing | |||
| Event-exclusive | Rowlet | Any | Egg Drop | Boss Will | |
| Event-exclusive | Litten | Any | Egg Drop | ||
| Event-exclusive | Popplio | Any | Egg Drop | ||
| Cursed Cove | Pokémon | Time | Method | Rarity | Notes |
| Krabby | Any | Grass | |||
| Parasect | Any | Grass | |||
| Sandslash | Any | Grass | |||
| Drowzee | Any | Grass | |||
| Granbull | Any | Grass | |||
| Event-exclusive | Sandygast | Any | Grass | ||
| Magikarp | Any | Fishing: Old Rod | Common | ||
| Magikarp | Any | Fishing: Good Rod | Uncommon | ||
| Poliwag | Any | Fishing: Good Rod | Common | ||
| Dewgong | Any | Fishing: Super Rod | |||
| Staryu | Any | Fishing: Super Rod | |||
| Tentacool | Any | Fishing: Super Rod | |||
| Chinchou | Any | Fishing: Super Rod | |||
| Feebas | Any | Fishing: Super Rod | |||
| Cursed Cove West | Pokémon | Time | Method | Rarity | Notes |
| Krabby | Any | Grass | |||
| Parasect | Any | Grass | |||
| Sandslash | Any | Grass | |||
| Drowzee | Any | Grass | |||
| Granbull | Any | Grass | |||
| Event-exclusive | Sandygast | Any | Grass | ||
| Magikarp | Any | Fishing: Old Rod | Common | ||
| Magikarp | Any | Fishing: Good Rod | Uncommon | ||
| Poliwag | Any | Fishing: Good Rod | Common | ||
| Dewgong | Any | Fishing: Super Rod | |||
| Staryu | Any | Fishing: Super Rod | |||
| Tentacool | Any | Fishing: Super Rod | |||
| Chinchou | Any | Fishing: Super Rod | |||
| Feebas | Any | Fishing: Super Rod | Rare | ||
| Cursed Cove East | Pokémon | Time | Method | Rarity | Notes |
| Krabby | Any | Grass | |||
| Parasect | Any | Grass | |||
| Sandslash | Any | Grass | |||
| Drowzee | Any | Grass | |||
| Granbull | Any | Grass | |||
| Event-exclusive | Sandygast | Any | Grass | ||
| Magikarp | Any | Fishing: Old Rod | Common | ||
| Magikarp | Any | Fishing: Good Rod | Uncommon | ||
| Poliwag | Any | Fishing: Good Rod | Common | ||
| Dewgong | Any | Fishing: Super Rod | |||
| Staryu | Any | Fishing: Super Rod | |||
| Tentacool | Any | Fishing: Super Rod | |||
| Chinchou | Any | Fishing: Super Rod | |||
| Feebas | Any | Fishing: Super Rod | Rare | ||
| Devils Beach | Pokémon | Time | Method | Rarity | Notes |
| Magikarp | Any | Fishing: Old Rod | Common | ||
| Magikarp | Any | Fishing: Good Rod | Uncommon | ||
| Poliwag | Any | Fishing: Good Rod | Common | ||
| Dewgong | Any | Fishing: Super Rod | |||
| Staryu | Any | Fishing: Super Rod | |||
| Tentacool | Any | Fishing: Super Rod | |||
| Chinchou | Any | Fishing: Super Rod | |||
| Feebas | Any | Fishing: Super Rod | Rare | ||
| Devils Den | Pokémon | Time | Method | Rarity | Notes |
| Zubat | Any | Cave | |||
| Gastly | Any | Cave | |||
| Raticate | Any | Cave | |||
| Onix | Any | Cave | |||
| Haunter | Any | Cave | |||
| Gligar | Any | Cave | |||
| Geodude | Any | Cave | |||
| Event-exclusive | Rowlet | Any | Egg Drop | Boss Ghost Kian | |
| Event-exclusive | Litten | Any | Egg Drop | ||
| Event-exclusive | Popplio | Any | Egg Drop | ||
| Skull Valley | Pokémon | Time | Method | Rarity | Notes |
| Hoothoot | N | Grass | |||
| Haunter | Any | Grass | |||
| Meowth | Any | Grass | |||
| Rattata | Any | Grass | |||
| Duskull | Any | Grass | |||
| Pumpkaboo | Any | Grass | Common | ||
| Parasect | Any | Grass | |||
| Krabby | Any | Grass | |||
| Gourgeist | Any | Grass | |||
| Deadmans Hills | Pokémon | Time | Method | Rarity | Notes |
| Golbat | Any | Grass | |||
| Raticate | Any | Grass | |||
| Growlithe | D/E | Grass | |||
| Weezing | Any | Grass | |||
| Sableye | Any | Grass | |||
| Haunter | N | Grass | |||
| Shadow Hill Cemetery | Pokémon | Time | Method | Rarity | Notes |
| Murkrow | Any | Grass | |||
| Hoothoot | N | Grass | |||
| Haunter | Any | Grass | |||
| Meowth | Any | Grass | |||
| Rattata | Any | Grass | |||
| Duskull | Any | Grass | |||
| Yamask | Any | Grass | |||
| Grubbin | Any | Grass | Uncommon | ||
| Mismagius Mausoleum | Pokémon | Time | Method | Rarity | Notes |
| Spinemire Pass | Pokémon | Time | Method | Rarity | Notes |
| Murkrow | Any | Grass | |||
| Hoothoot | N | Grass | |||
| Drowzee | Any | Grass | |||
| Persian | Any | Grass | |||
| Scyther | Any | Grass | |||
| Snorunt | N | Grass | |||
| Event-exclusive | Shuppet | Any | Grass | ||
| Butterfree | Any | Grass | |||
| Golbat | Any | Grass | |||
| Raticate | Any | Grass | |||
| Growlithe | D/E | Grass | |||
| Weezing | Any | Grass | |||
| Sableye | Any | Grass | |||
| Haunter | N | Grass | |||
| Spinemire Pass Barn | Pokémon | Time | Method | Rarity | Notes |
| Rattata | Any | Floor | |||
| Raticate | Any | Floor | |||
| Moaning Caverns | Pokémon | Time | Method | Rarity | Notes |
| Zubat | Any | Cave | |||
| Gastly | Any | Cave | |||
| Onix | Any | Cave | |||
| Haunter | Any | Cave | |||
| Gligar | Any | Cave | |||
| Magmar | Any | Cave | |||
| Magby | Any | Cave | |||
| Spiritomb | Any | Cave | |||
| Event-exclusive | Dhelmise | Any | Cave | ||
| Event-exclusive | Rowlet | Any | Egg Drop | Boss Malicia | |
| Event-exclusive | Litten | Any | Egg Drop | ||
| Event-exclusive | Popplio | Any | Egg Drop | ||
| Military Area | Pokémon | Time | Method | Rarity | Notes |
| Area 61 | Pokémon | Time | Method | Rarity | Notes |
| Howling Pass | Pokémon | Time | Method | Rarity | Notes |
| Zubat | Any | Cave | |||
| Gastly | Any | Cave | |||
| Onix | Any | Cave | |||
| Haunter | Any | Cave | |||
| Gligar | Any | Cave | |||
| Magmar | Any | Cave | |||
| Magby | Any | Cave | |||
| Spiritomb | Any | Cave | |||
| Event-exclusive | Dhelmise | Any | Cave | ||
| Fallmoor Fields | Pokémon | Time | Method | Rarity | Notes |
| Hoothoot | N | Grass | |||
| Haunter | Any | Grass | |||
| Meowth | Any | Grass | |||
| Rattata | Any | Grass | |||
| Event-exclusive | Alolan Rattata | Any | Grass | ||
| Pumpkaboo | Any | Grass | |||
| Parasect | Any | Grass | |||
| Krabby | Any | Grass | |||
| Gastly | Any | Grass | |||
| Evil Ridge | Pokémon | Time | Method | Rarity | Notes |
| Hoothoot | N | Grass | |||
| Drowzee | Any | Grass | |||
| Persian | Any | Grass | |||
| Event-exclusive | Shuppet | Any | Grass | ||
| Butterfree | Any | Grass | |||
| Mankey | Any | Grass | |||
| Aipom | Any | Grass | |||
| Event-exclusive | Poochyena | Any | Grass | ||
| Event-exclusive | Alolan Marowak | N | Grass | "Super Rare" | (quote Rusty) |
| Noctowl | N | Grass | |||
| Raticate | Any | Grass | |||
| Phantump | N | Grass | |||
| Zubat | N | Grass | |||
| Hallow Island Lighthouse | Pokémon | Time | Method | Rarity | Notes |
| Secret Lab Deepest Underground |
Pokémon | Time | Method | Rarity | Notes |
| Storage Warehouse | Pokémon | Time | Method | Rarity | Notes |
| Event-exclusive | Rowlet | Any | Egg Drop | Boss Alien | |
| Event-exclusive | Litten | Any | Egg Drop | ||
| Event-exclusive | Popplio | Any | Egg Drop | ||
| Howling Passage | Pokémon | Time | Method | Rarity | Notes |
| Zubat | Any | Cave | |||
| Gastly | Any | Cave | |||
| Onix | Any | Cave | |||
| Haunter | Any | Cave | |||
| Gligar | Any | Cave | |||
| Rattata | D/E | Cave | |||
| Dog Bite Bay | Pokémon | Time | Method | Rarity | Notes |
| Krabby | Any | Grass | |||
| Parasect | Any | Grass | |||
| Sandslash | Any | Grass | |||
| Drowzee | Any | Grass | |||
| Granbull | Any | Grass | |||
| Event-exclusive | Sandygast | D/E | Grass | ||
| Helioptile | Any | Grass | |||
| Event-exclusive | Rockruff | Any | Grass | Rare | |
| Kingler | D/E | Grass | |||
| Paras | Any | Grass | |||
| Binacle | Any | Grass | |||
| Barbaracle | D/E | Grass | |||
| Magikarp | Any | Fishing | |||
| Poliwag | Any | Fishing | |||
| Dewgong | Any | Fishing | |||
| Staryu | Any | Fishing | |||
| Tentacool | Any | Fishing | |||
| Chinchou | Any | Fishing | |||
| Feebas | D/E | Fishing | |||
| Clauncher | D/E | Fishing | |||
| Event-exclusive | Lycanroc (Dusk Form) | Any | Quest | 70.00% | Dusk drop from Lucian boss. Chance according to Rusty |
| Event-exclusive | Rowlet | Any | Egg Drop | Boss Basher Brian | |
| Event-exclusive | Litten | Any | Egg Drop | ||
| Event-exclusive | Popplio | Any | Egg Drop | ||
| Crowmourn City | Pokémon | Time | Method | Rarity | Notes |
| Magikarp | Any | Fishing | |||
| Poliwag | Any | Fishing | |||
| Dewgong | Any | Fishing | |||
| Staryu | Any | Fishing | |||
| Tentacool | Any | Fishing | |||
| Chinchou | Any | Fishing | |||
| Feebas | D/E | Fishing | |||
| Clauncher | D/E | Fishing | |||
| Phantom Mountain East | Pokémon | Time | Method | Rarity | Notes |
| Hoothoot | Any | Grass | |||
| Drowzee | Any | Grass | |||
| Persian | Any | Grass | |||
| Event-exclusive | Shuppet | Any | Grass | ||
| Butterfree | Any | Grass | |||
| Mankey | Any | Grass | |||
| Aipom | Any | Grass | |||
| Event-exclusive | Poochyena | Any | Grass | ||
| Phantom Mountain West | Pokémon | Time | Method | Rarity | Notes |
| Hoothoot | N | Grass | |||
| Drowzee | Any | Grass | |||
| Persian | Any | Grass | |||
| Event-exclusive | Shuppet | Any | Grass | ||
| Butterfree | Any | Grass | |||
| Mankey | Any | Grass | |||
| Aipom | Any | Grass | |||
| Event-exclusive | Inkay | D/E | Grass | ||
| Rattata | Any | Grass | |||
| Noctowl | N | Grass | |||
| Raticate | Any | Grass | |||
| Phantom Mountain Pass | Pokémon | Time | Method | Rarity | Notes |
| Hoothoot | Any | Grass | |||
| Drowzee | Any | Grass | |||
| Persian | Any | Grass | |||
| Event-exclusive | Shuppet | Any | Grass | ||
| Butterfree | Any | Grass | |||
| Mankey | Any | Grass | |||
| Aipom | Any | Grass | |||
| Event-exclusive | Poochyena | Any | Grass | ||
| Honedge | D/E | Grass | |||
| Spiders Nest Cave 1F First room (entrance from Pass) |
Pokémon | Time | Method | Rarity | Notes |
| Zubat | Any | Cave | |||
| Gastly | Any | Cave | |||
| Onix | Any | Cave | |||
| Haunter | Any | Cave | |||
| Gligar | Any | Cave | |||
| Rattata | D/E | Cave | |||
| Ariados | Any | Cave | |||
| Spinarak | Any | Cave | |||
| Geodude | Any | Cave | |||
| Spiders Nest Cave 1F Hiker Kelly |
Pokémon | Time | Method | Rarity | Notes |
| Zubat | Any | Cave | |||
| Gastly | Any | Cave | |||
| Onix | Any | Cave | |||
| Haunter | Any | Cave | |||
| Gligar | Any | Cave | |||
| Rattata | D/E | Cave | |||
| Ariados | Any | Cave | |||
| Spinarak | Any | Cave | |||
| Geodude | Any | Cave | |||
| Spiders Nest Cave 1F Room with 4 ladders |
Pokémon | Time | Method | Rarity | Notes |
| Zubat | Any | Cave | |||
| Gastly | Any | Cave | |||
| Onix | Any | Cave | |||
| Haunter | Any | Cave | |||
| Gligar | Any | Cave | |||
| Rattata | D/E | Cave | |||
| Ariados | Any | Cave | |||
| Spinarak | Any | Cave | |||
| Geodude | Any | Cave | |||
| Spiders Nest Cave B1F |
Pokémon | Time | Method | Rarity | Notes |
| Can be accessed using ladder leading down from 1F, or using entrance at the northwestern corner of 1F. | Zubat | Any | Cave | ||
| Gastly | Any | Cave | |||
| Onix | Any | Cave | |||
| Haunter | Any | Cave | |||
| Gligar | Any | Cave | |||
| Rattata | D/E | Cave | |||
| Ariados | Any | Cave | |||
| Spinarak | Any | Cave | |||
| Geodude | Any | Cave | |||
| Dewpider | Any | Shallow water | |||
| Spiders Nest Cave B1F – Back Cave 1 |
Pokémon | Time | Method | Rarity | Notes |
| Take cave entrance in shallow pool from B1F | Zubat | Any | Cave | ||
| Gastly | Any | Cave | |||
| Onix | Any | Cave | |||
| Haunter | Any | Cave | |||
| Gligar | Any | Cave | |||
| Rattata | D/E | Cave | |||
| Ariados | Any | Cave | |||
| Spinarak | Any | Cave | |||
| Geodude | Any | Cave | |||
| Dewpider | Any | Shallow water | |||
| Spiders Nest Cave B1F – Araquanid nest |
Pokémon | Time | Method | Rarity | Notes |
| Zubat | Any | Cave | |||
| Gastly | Any | Cave | |||
| Onix | Any | Cave | |||
| Haunter | Any | Cave | |||
| Gligar | Any | Cave | |||
| Ariados | Any | Cave | |||
| Spinarak | Any | Cave | |||
| Dewpider | Any | Shallow water | |||
| Spiders Nest Cave Spiders Nest |
Pokémon | Time | Method | Rarity | Notes |
| Zubat | Any | Cave | |||
| Gastly | Any | Cave | |||
| Onix | Any | Cave | |||
| Haunter | Any | Cave | |||
| Gligar | Any | Cave | |||
| Ariados | Any | Cave | |||
| Spinarak | Any | Cave | |||
| Dewpider | Any | Shallow water | |||
| The Nether | Pokémon | Time | Method | Rarity | Notes |
| Gastly | Any | Cave | |||
| Event-exclusive | Alolan Rattata | Any | Cave | ||
| Rattata | Any | Cave | |||
| Zubat | Any | Cave | |||
| Golbat | Any | Cave | |||
| Geodude | Any | Cave | |||
| Graveler | Any | Cave | |||
| Phantump | Any | Cave | |||
| Raticate | Any | Cave | |||
| Houndour | Any | Cave | |||
| Event-exclusive | Salandit | Any | Cave | ||
| Event-exclusive | Rowlet | Any | Egg Drop | Demon boss | |
| Event-exclusive | Litten | Any | Egg Drop | ||
| Event-exclusive | Popplio | Any | Egg Drop | ||
| The Nether Passage | Pokémon | Time | Method | Rarity | Notes |
| Gastly | Any | Cave | |||
| Event-exclusive | Alolan Rattata | Any | Cave | ||
| Rattata | Any | Cave | |||
| Zubat | Any | Cave | |||
| Golbat | Any | Cave | |||
| Geodude | Any | Cave | |||
| Graveler | Any | Cave | |||
| Phantump | Any | Cave | |||
| Raticate | Any | Cave | |||
| Houndour | Any | Cave | |||
| Event-exclusive | Salandit | Any | Cave | ||
| The Nether Chambers | Pokémon | Time | Method | Rarity | Notes |
| Gastly | Any | Cave | |||
| Event-exclusive | Alolan Rattata | Any | Cave | ||
| Rattata | Any | Cave | |||
| Zubat | Any | Cave | |||
| Golbat | Any | Cave | |||
| Geodude | Any | Cave | |||
| Graveler | Any | Cave | |||
| Phantump | Any | Cave | |||
| Raticate | Any | Cave | |||
| Houndour | Any | Cave | |||
| Event-exclusive | Salandit | Any | Cave | ||
| The Nether Pit | Pokémon | Time | Method | Rarity | Notes |
| Gastly | Any | Cave | |||
| Event-exclusive | Alolan Rattata | Any | Cave | ||
| Rattata | Any | Cave | |||
| Zubat | Any | Cave | |||
| Golbat | Any | Cave | |||
| Geodude | Any | Cave | |||
| Graveler | Any | Cave | |||
| Phantump | Any | Cave | |||
| Raticate | Any | Cave | |||
| Houndour | Any | Cave | |||
| Event-exclusive | Mimikyu | Any | Cave | Very Rare | |
| Event-exclusive | Salandit | Any | Cave | ||
| Event-exclusive | Turtonator | Any | Cave | ||
| The Nether Tomb | Pokémon | Time | Method | Rarity | Notes |
| Gastly | Any | Cave | |||
| Event-exclusive | Alolan Rattata | Any | Cave | ||
| Rattata | Any | Cave | |||
| Zubat | Any | Cave | |||
| Golbat | Any | Cave | |||
| Geodude | Any | Cave | |||
| Graveler | Any | Cave | |||
| Phantump | Any | Cave | |||
| Raticate | Any | Cave | |||
| Houndour | Any | Cave | |||
| Event-exclusive | Salandit | Any | Cave |