Route 30 — Pokémon Soulgold
Every wild Pokémon here, by encounter method.
Route 30 lists 12 Pokémon across 5 encounter methods (grass, surf, old rod, good rod, and more), between level 3 and 40. 2 of them are on no other route's wild tables in this guide: Spinarak, Cottonee.
Route 30 in other guides
The same area in other ROM hacks on this site. Each one has its own encounter table.
Infinite FusionPokémon AmbrosiaPokémon GS ChroniclesPokémon Heart & SoulPokémon Polished CrystalPokémon SoothingSilverSacred Gold & Storm Silver
The original game's table for this area:
3 trainers here: