What Pokémon can you catch at Route 20?

Amoonguss, Foongus, Gothorita, Jigglypuff, Noctowl, Sudowoodo, Trevenant, and Zoroark can be caught at Route 20 in the Kalos region.

Which games have wild Pokémon encounters at Route 20?

Route 20 has encounter data for Pokémon X and Y.

Route 20

8 Pokémon can be caught at Route 20 in Kalos — highlighted on the map below.

Route 20, the Winding Woods, snakes through a dense forest in eastern Kalos between Snowbelle City and the Pokémon Village. Its tangled paths lead to dead ends and unexpected places, sometimes depositing travelers somewhere different depending on the turns taken, much like the Sevii Islands' Lost Cave. The thick canopy blocks most sunlight, attracting nocturnal Pokémon such as Noctowl, and a Moss Rock in the woods allows Eevee to evolve into Leafeon.

Pokémon at Route 20

Game

Pokémon	Games	Method	Levels	Rarity
Gothorita	XY	Walking	48-50	Common
Jigglypuff	XY	Walking	48-49	Common
Noctowl	XY	Walking	48-50	Common
Trevenant	XY	Walking	48-49	Common
Amoonguss	XY	Walking	49-50	Uncommon
Foongus	XY	Walking	25	Uncommon
Jigglypuff	XY	Walking	50	Uncommon
Trevenant	XY	Walking	50	Uncommon
Zoroark	XY	Walking	48-50	Uncommon
Gothorita	XY	Walking	50	Rare
Noctowl	XY	Walking	50	Rare
Sudowoodo	XY	Walking	25	Rare
Trevenant	XY	Walking	25	Rare