Swarms
In Pokemon Diamond and Pearl, after defeating the Elite Four, special Pokemon will be found all over Sinnoh. They are Pokemon that appear in groups, or swarms. Swarms will inhabit special areas of Sinnoh for a day, but only one swarm will be found per day.
To find out what the swarming Pokemon of the day is, go to Sandgem Town and enter the home of your second rival. Talk to her younger sister and she will state where the swarming Pokemon is and what Pokemon it is. Here is the list of Swarming Pokemon and where they can be found.
| Pokemon | Pokemon Diamond/Pearl Sprite | Location | National PokeDex No. |
| Doduo |  |
Route 201 | #084 |
| Zigzagoon |  |
Route 202 | #263 |
| Cubone |  |
Route 203 | #104 |
| Nosepass |  |
Route 206 | #299 |
| Phanpy |  |
Route 207 | #231 |
| Dunsparce |  |
Route 208 | #206 |
| Snubbull |  |
Route 209 | #209 |
| Absol |  |
Route 213 | #359 |
| Spoink |  |
Route 214 | #325 |
| Drowsee |  |
Route 215 | #096 |
| Delibird |  |
Route 216 | #225 |
| Swinub |  |
Route 217 | #220 |
| Voltorb |  |
Route 218 | #100 |
| Farfetch'd |  |
Route 221 | #083 |
| Skitty |  |
Route 222 | #300 |
| Natu |  |
Route 224 | #177 |
| Makuhita |  |
Route 225 | #296 |
| Krabby |  |
Route 226 | #098 |
| Spinda |  |
Route 227 | #327 |
| Beldum |  |
Route 228 | #374 |
| Pidgey |  |
Route 229 | #016 |
| Corsola |  |
Route 230 | #222 |
| Surskit |  |
Lake Verity | #283 |
| Smoochum |  |
Lake Acuity | #238 |
| Lickitung |  |
Lake Valor | #108 |
| Magnemite |  |
Fuego Ironworks | #081 |
| Electrike |  |
Valley Windworks | #309 |
| Slakoth |  |
Eterna Forest | #287 |
| Tangela |  |
Mt. Coronet Top | #114 |