This page contains a list of all the swarm Pokémon available in Black/White. A swarm Pokémon is one that does not show up very often in the wild but can be found in considerable numbers on certain days when they swarm. These are Pokémon that are not otherwise found in Unova.

To activate swarming Pokémon you must first obtain the National Dex. Swarming Pokémon will change once per day at midnight. To check if a Pokémon is swarming you must go to a route gate and check the ticker in the back.

Pokémon	Location
Farfetch’d	Route 1
Wynaut	Route 2
Volbeat	Route 3 (Black only)
Illumise	Route 3 (White only)
Hippopotas	Route 4
Smeargle	Route 5
Plusle	Route 6 (Black only)
Minun	Route 6 (White only)
Sentret	Route 7
Croagunk	Route 8
Houndour	Route 9 (Black only)
Poochyena	Route 9 (White only)
Tyrogue	Route 10
Shroomish	Route 11 (Black only)
Paras	Route 11 (White only)
Doduo	Route 12
Shuppet	Route 13
Yanma	Route 14
Mankey	Route 15
Pineco	Route 16
Exeggcute	Route 18