Routes:
Route 1:
None
Route 2 Mainland:
Magikarp - 80% - lvl 4-6
Chewtle - 15% - lvl 4-6
Arrokuda - 5% - lvl 4-6
Route 2 Highland:
Magikarp - 50% - lvl 37-40
Feebas - 1% - lvl 37-40
Chewtle - 49% - lvl 37-40
Route 3:
None
Route 4:
Goldeen - 10% - lvl 13-15
Magikarp - 70% - lvl 13-15
Chewtle - 20% - lvl 13-15
Route 5:
Goldeen - 10% - lvl 16-18
Magikarp - 70% - lvl 16-18
Chewtle - 20% - lvl 16-18
Route 6:
Goldeen - 10% - lvl 28-30
Magikarp - 70% - lvl 28-30
Drednaw - 20% - lvl 28-30
Route 7:
None
Route 8:
None
Route 9 Spikemuth side:
Octillery - 60% - lvl 38-42
Wishiwashi (solo form) - 30% - lvl 38-42
Pyukumuku - 10% - lvl 38-42
Route 9 Circhester Bay:
Lapras - 1% - lvl 39-43
Mantine - 10% - lvl 39-43
Wailmer - 34% - lvl 39-43
Wailord - 5% - lvl 39-43
Mantyke - 50% - lvl 39-43
Route 10:
None
Towns and cities:
Postwick:
None
Wedgehurst:
None
Motostoke:
Magikarp - 50% - lvl 7-11
Barboach - 10% - lvl 7-11
Chewtle - 40% - lvl 7-11
Turffield:
None
Hulbury:
Chinchou - 20% - lvl 20-24
Basculin (Red-Striped (SW exclusive) - 10% - lvl 20-24
Wishiwashi (solo form) - 5% - lvl 20-24
Chewtle - 15% - lvl 20-24
Arrokuda - 50% - lvl 20-24
Basculin (Blue- Striped (SH exclusive) - 10% - lvl 20-24
Hammerlocke:
None
Stow-on-Side:
None
Ballonlea:
None
Circhester:
None
Spikemuth:
None
Wyndon:
None
Wild Area:
Meetup Spot:
None
Rolling Fields:
None
Dappled Grove:
None
Watchtower Ruins:
None
East Lake Axewell:
Shellder - 20% - lvl 8-12
Goldeen - 25% - lvl 8-12
Magikarp - 50% - lvl 8-12
Wishiwashi (solo form) - 5% - lvl 8-12
West Lake Axewell:
Goldeen - 35% - lvl 7-11
Magikarp - 50% - lvl 7-11
Remoraid - 10% - lvl 7-11
Wishiwashi (solo form) - 5% - lvl 7-11
Axew’s Eye:
Magikarp - 50% - lvl 35-40
Gyarados - 5% - lvl 35-40
Octillery - 25% - lvl 35-40
Wishiwashi (solo form) - 20% lvl 35-40
North Lake Miloch:
Magikarp - 58% - lvl 14-16
Barboach - 40% - lvl 14-16
Basculin (Red-Striped (SW exclusive) - 2% - lvl 14-16
Basculin (Blue-Striped (SH exclusive) - 2% - lvl 14-16
South Lake Miloch:
Magikarp - 50% - lvl 11-13
Remoraid - 40% - lvl 11-13
Barboach - 9% - lvl 11-13
Pyukumuku - 1% - lvl 11-13
Giant’s Seat:
Shellder - 60% - lvl 30-35
Cloyster - 5% - lvl 30-35
Gyarados - 10% - lvl 30-35
Pyukumuku - 25% - lvl 30-35
Motostoke Riverbank:
Basculin (Red-Striped (SW exclusive) - 35% - lvl 26-28
Mareanie - 5% - lvl 26-28
Arrokuda - 50% - lvl 26-28
Barraskewda - 10% - lvl 26-28
Basculin (Blue-Striped (SH exclusive
Bridge Field:
Magikarp - 30% - lvl 26-28
Gyarados - 5% - lvl 26-28
Lanturn - 25% - lvl 26-28
Qwilfish - 10% - lvl 26-28
Drednaw - 30% - lvl 26-28
Stony Wilderness:
None
Dusty Bowl:
Gyarados - 5% - lvl 40-45
Lanturn - 35% - lvl 40-45
Qwilfish - 10% - lvl 40-45
Barraskewda - 50% - lvl 40-45
Giant’s Cap:
Krabby - 35% - lvl 26-28
Goldeen - 50% - lvl 26-28
Gyarados - 5% - lvl 26-28
Corphish - 10% - lvl 26-28
Giant’s Mirror:
Gyarados - 5% - lvl 26-28
Chinchou - 10% - lvl 26-28
Mareanie - 35% - lvl 26-28
Drednaw - 50% - lvl 26-28
Hammerlocke Hills:
None
Lake of Outrage:
Gyarados - 5% - lvl 50-52
Lanturn - 35% - lvl 50-52
Qwilfish - 10% - lvl 50-52
Barraskewda - 50% - lvl 50-52
Other Areas:
Galar Mine No.1:
None
Galar Mine No.2:
Barboach - 55% - lvl 20-24
Corphish - 15% - lvl 20-24
Chewtle - 30% - lvl 20-24
Motostoke Outskirts:
None
Slumbering Weald:
Whiscash - 60% - lvl 45-47
Magikarp - 20% - lvl 45-47
Barboach - 20% - lvl 45-47
Glimwood Tangle:
None
Final list:
Magikarp (12 locations)
Gyarados (7 locations)
Chewtle (7 locations)
Goldeen (6 locations)
Wishiwashi (5 locations)
Barboach (4 locations)
Arrokuda (3 locations)
Drednaw (3 locations)
Pyukumuku (3 locations)
Basculin (3 locations)
Barraskewda (3 locations)
Lanturn (3 locations)
Qwilfish (3 locations)
Octillery (2 locations)
Chinchou (2 locations)
Shellder (2 locations)
Mareanie (2 locations)
Feebas (1 location)
Lapras (1 location)
Mantine (1 location)
Wailmer (1 location)
Wailord (1 location)
Mantyke (1 location)
Cloyster (1 location)
Corphish (1 location)
This is a work in progress. I will add the IoA soon.
Source: this site’s pages on every location in SWSH.
So as you can see, there are a lot of different Pokémon that can be fished up.
I hope this helps!