EV-training locations
Various Effort Value-training locations are recommended in order to optimize the EVs apportionment of one's Pokémon. While not categorically required, they are recommended because they have an all-encompassing array of common wild Pokémon yielding EVs for each stat.
Regional locations
Kanto
| Area | EV | Pokémon | Method | Time |
|---|---|---|---|---|
| Route 24 | HP | Caterpie; Jigglypuff; Wigglytuff | Land | Morning |
| Attack | Krabby; Kingler; Seaking | Surfing | Day | |
| Defense | Koffing; Weezing; Poliwrath | Surfing; Fishing | Morning | |
| Special Attack | Oddish; Gloom; Vileplume | Land | Night | |
| Special Defense | Tentacool; Tentacruel; Slowking | Surfing; Fishing | Night | |
| Speed | Pidgey; Pidgeotto; Pidgeot | Land | Day |
Johto
| Area | EV | Pokémon | Method | Time |
|---|---|---|---|---|
| Route 31 | HP | Wooper; Quagsire; Azumarill | Surfing | Day |
| Attack | Machop; Machoke; Machamp | Land | Morning | |
| Defense | Sandshrew; Sandslash; Golem | Land | Day | |
| Special Attack | Gastly; Haunter; Gengar | Land | Night | |
| Special Defense | Seel; Lombre; Ludicolo | Surfing; Fishing | Night | |
| Speed | Zubat; Golbat; Crobat | Surfing; Fishing | Morning |
Hoenn
| Area | EV | Pokémon | Method | Time |
|---|---|---|---|---|
| Route 120 | HP | Nidoran Female; Nidorina; Nidoqueen | Land | Night |
| Attack | Nidoran Male; Nidorino; Nidoking | Land | Day | |
| Defense | Koffing; Pelipper; Poliwrath | Surfing; Fishing | Night | |
| Special Attack | Mareep; Flaaffy; Ampharos | Land | Morning | |
| Special Defense | Seel; Mantine; Politoed | Surfing; Fishing | Morning | |
| Speed | Zubat; Golbat; Crobat | Surfing; Fishing | Day |
Sinnoh
| Area | EV | Pokémon | Method | Time |
|---|---|---|---|---|
| Route 208 | HP | Dunsparce; Lickitung; Lickilicky | Land | Morning |
| Attack | Patrat; Kricketune; Staraptor | Land | Night | |
| Defense | Koffing; Weezing; Poliwrath | Surfing; Fishing | Morning | |
| Special Attack | Gastly; Haunter; Gengar | Land | Day | |
| Special Defense | Seel; Lombre; Ludicolo | Surfing; Fishing | Day | |
| Speed | Zubat; Golbat; Crobat | Surfing; Fishing | Night |
Effort Wald
- Main article: Kanto Safari Effort Wald
Adjoining the Kanto Safari Zone in Fuchsia City, the Effort Wald is the most tautly organized EV-hunting area in the game. It is sectionalized into two zones, each inhabited by three Pokémon (for a total of six) with distinct EV yields.
Despite its optimality for EV-training, some might prefer non-Safari training areas because the Wald charges 
10,000 for 20-minute sessions. Though, the fee will be reduced to 2,000 per entry if the player has an active Safari Pass. Nonetheless, many are willing to shell out the requisite fee for its convenience as opposed to the scattered public areas.