Pokémon Swarm

Pokémon Swarms are mass outbreaks that were introduced in Generation II. Swarms allow the player to capture Pokémon that are quite rare or unobtainable.

Generation II

Some trainers will give their phone numbers to alert the player if a swarm is taking place.

Pokémon

Pokémon	Caller	Route
Qwilfish	Ralph	Route 32
Dunsparce	Anthony	Route 33
Yanma	Arnie	Route 35
Snubbull	Chad	Route 38
Remoraid	Wilton	Route 44
Marill	Parry	Route 45

Generation III

In Generation III, swarms can be determined by checking the television.

Pokémon

Pokémon	Location	Version
Surskit	Route 102 and Route 114	E
Lotad	Route 114	R
Nuzleaf	Route 114	E
Skitty	Route 116	R/S/E
Seedot	Route 117	S/E

Generation IV

Diamond, Pearl and Platinum

In Diamond, Pearl and Platinum, after defeating the Elite Four and obtaining the National Pokédex, you can visit your rival's (Lucas or Dawn) house in Sandgem Town. Talk to the sibling, and she will tell you where a swarm is located.

Pokémon

Pokémon	Location	Version
Doduo	Route 201	D/P/Pt
Zigzagoon	Route 202	D/P/Pt
Cubone	Route 203	D/P/Pt
Nosepass	Route 206	D/P
Larvitar	Route 206	Pt
Phanpy	Route 207	D/P/Pt
Dunsparce	Route 208	D/P/Pt
Snubbull	Route 209	D/P/Pt
Absol	Route 213	D/P
Spoink	Route 214	D/P/Pt
Drowzee	Route 215	D/P/Pt
Delibird	Route 216	D/P/Pt
Swinub	Route 217	D/P
Voltorb	Route 218	D/P/Pt
Farfetch'd	Route 221	D/P/Pt
Skitty	Route 222	D/P/Pt
Natu	Route 224	D/P/Pt
Makuhita	Route 225	D/P/Pt
Krabby	Route 226	D/P/Pt
Spinda	Route 227	D/P/Pt
Beldum	Route 228	D/P/Pt
Pidgey	Route 229	D/P
Pinsir	Route 229	Pt
Corsola	Route 230	D/P/Pt
Surskit	Lake Verity	D/P
Smoochum	Lake Acuity	D/P
Lickitung	Lake Valor	D/P
Magnemite	Fuego Ironworks	D/P
Electrike	Valley Windworks	D/P/Pt
Slakoth	Eterna Forest	D/P/Pt

HeartGold and SoulSilver

After beating the game, check Professor Oak's Pokémon Talk on the radio station. Each day, he will say that a Pokémon was spotted in Johto or Kanto.

Pokémon

Pokémon	Location	Version
Poochyena	Kanto Route 1	HG/SS
Baltoy	Kanto Route 3	HG
Gulpin	Kanto Route 3	SS
Sableye	Kanto Route 9	HG
Mawile	Kanto Route 9	SS
Relicanth	Kanto Route 12	HG/SS
Chansey	Kanto Route 13	HG/SS
Clamperl	Kanto Route 19	HG/SS
Buneary	Kanto Route 25	HG/SS
Luvdisc	Kanto Route 27	HG/SS
Qwilfish	Johto Route 32	HG/SS
Ralts	Johto Route 34	HG/SS
Yanma	Johto Route 35	HG/SS
Snubbull	Johto Route 38	HG/SS
Remoraid	Johto Route 44	HG/SS
Swablu	Johto Route 45	HG/SS
Ditto	Johto Route 47	HG/SS
Dunsparce	Dark Cave	HG/SS
Kricketot	Viridian Forest	HG/SS
Marill	Mt. Mortar	HG/SS
Whiscash	Violet City	HG/SS
Wingull	Vermilion City	HG/SS

Generation V

After defeating the Elite Four, you can check the message board inside the gates.

Pokémon

Pokémon	Location	Version
Farfetch'd	Route 1	B/W
Wynaut	Route 2	B/W
Volbeat	Route 3	B
Illumise	Route 3	W
Hippopotas	Route 4	B/W
Smeargle	Route 5	B/W
Plusle	Route 6	B
Minun	Route 6	W
Sentret	Route 7	B/W
Croagunk	Route 8	B/W
Houndour	Route 9	B
Poochyena	Route 9	W
Tyrogue	Route 10	B/W
Shroomish	Route 11	B
Paras	Route 11	W
Doduo	Route 12	B/W
Shuppet	Route 13	B/W
Yanma	Route 14	B/W
Mankey	Route 15	B/W
Pineco	Route 16	B/W
Exeggcute	Route 18	B/W