Snover locations — where to catch

In Lumiose City (Legends: Z-A)

• Wild Zone 12 — Walk

In Paldea (Scarlet & Violet)

• Glaseado Mountain — Walk
• North Province (Area One) — Walk
• North Province (Area Three) — Walk

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

• Polar Biome — Walk

In Hisui (Legends: Arceus)

• Arena's Approach — Walk
• Avalugg's Legacy — Walk
• Bonechill Wastes — Walk
• Glacier Terrace — Walk

In Sinnoh (Diamond, Pearl & Platinum)

• Acuity Lakefront — Walk
• Lake Acuity — Walk
• Mt. Coronet — Walk
• Route 216 — Walk
• Route 217 — Walk

In Johto & Kanto (HeartGold & SoulSilver)

• Pokéwalker — Walk

Other games (4)

• Brilliant Diamond / Shining Pearl (Gen 8): Acuity Lakefront, Mt. Coronet, Route 216, Route 217
• Sword / Shield — The Isle of Armor (Gen 8): Frostpoint Field
• Sword / Shield (Gen 8): Axew's Eye, Dappled Grove, Dusty Bowl, East Lake Axewell, Route 10, Galar Route 10, Route 8, Galar Route 8, Giant's Cap, Giant's Mirror, Giant's Seat, Hammerlocke Hills, North Lake Miloch, South Lake Miloch, Watchtower Ruins
• X / Y (Gen 6): Friend Safari, Kalos Route 17

Snover — full Pokédex entry