Slowpoke locations — where to catch

In Lumiose City (Legends: Z-A)

• South Boulevard — Trade
• Wild Zone 10 — Walk
• Wild Zone 11 — Walk

In Paldea (Scarlet & Violet)

• Casseroya Lake — Walk
• East Province (Area One) — Walk
• East Province (Area Two) — Walk
• Socarrat Trail — Walk
• South Province (Area Five) — Walk
• West Province (Area Three) — Walk
• West Province (Area Two) — Walk

In Blueberry Academy (Scarlet & Violet – The Indigo Disk)

• Coastal Biome — Walk

In Sinnoh (Diamond, Pearl & Platinum)

• Route 205 — Walk

In Johto & Kanto (HeartGold & SoulSilver)

• Johto Safari Zone — Walk
• Slowpoke Well — Surf, Walk
• Tohjo Falls — Surf, Walk

In Kanto (FireRed & LeafGreen)

• Celadon City — Surf
• Cerulean Cave — Super Rod, Surf
• Cerulean City — Super Rod
• Cinnabar Island — Super Rod
• Fuchsia City — Super Rod, Surf
• Pallet Town — Super Rod
• Route 10 — Super Rod
• Route 11 — Super Rod
• Route 12 — Super Rod
• Route 13 — Super Rod
• Route 22 — Super Rod, Surf
• Route 23 — Super Rod, Surf
• Route 24 — Super Rod
• Route 25 — Super Rod, Surf
• Route 4 — Super Rod
• Route 6 — Super Rod, Surf
• S.S. Anne — Super Rod
• Safari Zone — Super Rod, Surf
• Sea Route 19 — Super Rod
• Sea Route 20 — Super Rod
• Sea Route 21 — Super Rod
• Seafoam Islands — Super Rod, Surf, Walk
• Vermilion City — Super Rod
• Viridian City — Super Rod, Surf

In Sevii Islands (FireRed & LeafGreen)

• Berry Forest — Super Rod, Surf, Walk
• Bond Bridge — Super Rod, Walk
• Canyon Entrance — Walk
• Cape Brink — Super Rod, Surf, Walk
• Five Island — Super Rod
• Five Isle Meadow — Super Rod, Walk
• Four Island — Super Rod, Surf
• Green Path — Super Rod
• Icefall Cave — Super Rod, Surf, Walk
• Kindle Road — Super Rod, Walk
• Memorial Pillar — Super Rod
• One Island — Super Rod
• Outcast Island — Super Rod
• Resort Gorgeous — Super Rod
• Ruin Valley — Super Rod, Walk
• Tanoby Ruins — Super Rod
• Trainer Tower — Super Rod
• Treasure Beach — Super Rod, Walk
• Water Labyrinth — Super Rod
• Water Path — Super Rod, Walk

In Johto & Kanto (Gold, Silver & Crystal)

• Slowpoke Well — Surf, Walk
• Tohjo Falls — Surf, Walk

In Kanto (Red, Blue & Yellow)

• Celadon City — Super Rod
• Route 10 — Super Rod
• Route 12 — Surf
• Route 13 — Surf
• Safari Zone — Super Rod
• Seafoam Islands — Walk

Other games (10)

• Brilliant Diamond / Shining Pearl (Gen 8): Route 205
• Sword / Shield — The Isle of Armor (Gen 8): Ballimere Lake, Challenge Beach, Fields of Honor, Frigid Sea, Giant's Bed, Path to the Peak, Snowslide Slope, Soothing Wetlands, Training Lowlands
• Sword / Shield (Gen 8): Fields Of Honor, Wedgehurst
• Let's Go, Pikachu! / Let's Go, Eevee! (Gen 7): Seafoam Islands
• Ultra Sun / Ultra Moon (Gen 7): Alola Route 1, Alola Route 15, Alola Route 16, Kalae Bay, Poke Pelago
• Sun / Moon (Gen 7): Alola Route 1, Alola Route 15, Alola Route 16, Kalae Bay
• Omega Ruby / Alpha Sapphire (Gen 6): Fallarbor Town, Route 131, Mirage Spot Cave
• X / Y (Gen 6): Azure Bay, Kalos Route 12
• Black 2 / White 2 (Gen 5): Abundant Shrine
• Black / White (Gen 5): Abundant Shrine

Slowpoke — full Pokédex entry