| 1 | Bulbasaur | Gold | Time Capsule, Event| 2 | Ivysaur | Gold | Time Capsule | 3 | Venusaur | Gold | Time Capsule, Event | 4 | Charmander | Gold | Time Capsule, Event | 5 | Charmeleon | Gold | Time Capsule, Evolve Charmander (Lv. 16) | 6 | Charizard | Gold | Time Capsule, Event, Evolve Charmeleon (Lv. 36) | 7 | Squirtle | Gold | Time Capsule, Event | 8 | Wartortle | Gold | Time Capsule, Evolve Squirtle (Lv. 16) | 9 | Blastoise | Gold | Time Capsule, Event | 10 | Caterpie | Gold | Routes 2, 30, 31, Ilex Forest, National Park (Morning/Day)
| National Park (Bug-Catching Contest) Routes 26, 27, 34, 36, 37, 38, 39, Azalea Town, Ilex Forest, Lake of Rage (Headbutt trees) 11 | Metapod | Gold | Routes 2, 30, 31, Ilex Forest, National Park (Morning/Day)
| National Park (Bug-Catching Contest) Routes 26, 27, 34, 35, 36, 37, 38, 39, Azalea Town, Ilex Forest, Lake of Rage (Headbutt trees) 12 | Butterfree | Gold | Route 2 (Morning)
| National Park (Bug-Catching Contest) Routes 26, 27, 34, 35, 36, 37, 38, 39, Azalea Town, Ilex Forest, Lake of Rage (Headbutt trees) 13 | Weedle | Gold | National Park (Bug-Catching Contest) | 14 | Kakuna | Gold | National Park (Bug-Catching Contest) | 15 | Beedrill | Gold | National Park (Bug-Catching Contest) | 16 | Pidgey | Gold | Routes 1, 2, 5, 6, 25, 29, 30, 31, 35, 36, 37, National Park (Morning/Day) | 17 | Pidgeotto | Gold | Routes 2, 8, 13, 14, 15, 25, 37, 43 (Morning/Day) | 18 | Pidgeot | Gold | Evolve Pidgeotto (Lv. 36) | 19 | Rattata | Gold | Routes 1, 3, 4, 7, 9, 11, 22, 29, 30, 31, 32, 33, 34, 38, 39, 46, Tin Tower, Mt. Mortar, Union Cave, Tohjo Falls, Sprout Tower, Burned Tower | 20 | Raticate | Gold | Routes 9, 10, 26, 27, 38, 39, Mt. Mortar, Union Cave, Tohjo Falls, Burned Tower | 21 | Spearow | Gold | Routes 3, 4, 7, 9, 10, 22, 33, 42, 46
| Routes 29, 30, 31, 32, 33, 42, 43, 44 (Headbutt trees) Route 35 (Randy) 22 | Fearow | Gold | Routes 9, 10, 16, 17, 18, 22 (Morning/Day) | 23 | Ekans | Gold | Goldenrod Game Corner | 24 | Arbok | Gold | Evolve Ekans (Lv. 22) | 25 | Pikachu | Gold | Route 2 | 26 | Raichu | Gold | Evolve Pikachu (Thunder Stone) | 27 | Sandshrew | Gold | Union Cave, Mt. Moon | 28 | Sandslash | Gold | Routes 26, 27, Mt. Moon | 29 | NidoranF | Gold | Routes 35, 36 | 30 | Nidorina | Gold | Routes 13, 14, 15 | 31 | Nidoqueen | Gold | Evolve Nidorina (Moon Stone) | 32 | NidoranM | Gold | Routes 35, 36 | 33 | Nidorino | Gold | Routes 13, 14, 15 | 34 | Nidoking | Gold | Evolve Nidorino (Moon Stone) | 35 | Clefairy | Gold | Mt. Moon | 36 | Clefable | Gold | Evolve Clefairy (Moon Stone) | 37 | Vulipx | Gold | Trade | 38 | Ninetales | Gold | Trade | 39 | Jigglypuff | Gold | Routes 3, 4, 46 | 40 | Wigglytuff | Gold | Evolve Jigglypuff (Moon Stone) | 41 | Zubat | Gold | Rock Tunnel, Whirl Islands, Ilex Forest, Mt. Moon, Dark Cave, Ice Path, Mt. Mortar, Union Cave, Tohjo Falls, Burned Tower, Slowpoke Well
| Routes 3, 4, 32, 33, 42 (Night) 42 | Golbat | Gold | Dark Cave (Blackthorn City side), Union Cave, Slowpoke Well, Mt. Mortar, Whirl Islands, Ice Path, Mt. Silver Interior, Victory Road, Tohjo Falls | 43 | Oddish | Gold | Routes 5, 6, 24, 25, Ilex Forest (Night) | 44 | Gloom | Gold | Route 5 (Night) | 45 | Vileplume | Gold | Evolve Gloom (Leaf Stone) | 46 | Paras | Gold | National Park (Bug-Catching Contest)
| Ilex Forest, Mt. Moon 47 | Parasect | Gold | Evolve Paras (Lv. 24) | 48 | Venonat | Gold | Routes 24, 25, 43
| National Park (Bug-Catching Contest) 49 | Venomoth | Gold | Routes 24, 25 (Night) | 50 | Diglett | Gold | Diglett's Cave | 51 | Dugtrio | Gold | Diglett's Cave | 52 | Meowth | Gold | Trade | 53 | Persian | Gold | Trade | 54 | Psyduck | Gold | Route 6, 35, Ilex Forest (Surfing) | 55 | Golduck | Gold | Routes 6, 35, Ilex Forest (Surfing)
| Mt. Silver 56 | Mankey | Gold | Routes 9, 42 | 57 | Primeape | Gold | Route 9 | 58 | Growlithe | Gold | Routes 7, 8, 36, 37 | 59 | Arcanine | Gold | Evolve Growlithe (Fire Stone) | 60 | Poliwag | Gold | Routes 22, 28, 30, 31, 44, Violet City, Ecruteak City, Viridian City, Mt. Silver Exterior (Surfing and fishing)
| Routes 6, 35, 43, Ruins of Alph, Ilex Forest, Blackthorn City (Fishing) 61 | Poliwhirl | Gold | Routes 22, 28, 30, 31, 44, Violet City, Ecruteak City, Viridian City, Mt. Silver (Surfing) | 62 | Poliwrath | Gold | Evolve Poliwhirl (Water Stone) | 63 | Abra | Gold | Routes 5, 6, 8, 24, 25, 34, 35, Goldenrod Game Corner | 64 | Kadabra | Gold | Route 8 | 65 | Alakazam | Gold | Evolve Kadabra (Trade) | 66 | Machop | Gold | Rock Tunnel, Mt. Mortar
| Trade Drowzee in Goldenrod Department Store 67 | Machoke | Gold | Rock Tunnel, Mt. Mortar | 68 | Machamp | Gold | Evolve Machoke (Trade) | 69 | Bellsprout | Gold | Routes 5, 6, 24, 25, 31, 32, 44 | 70 | Weepinbell | Gold | Routes 24, 25, 44 | 71 | Victreebel | Gold | Evolve Weepinbell (Leaf Stone) | 72 | Tentacool | Gold | Routes 20, 21, 26, 27, 41, New Bark Town, Pallet Town, Vermilion City, Olivine City, Cinnabar Island (Surfing, Old/Good Rod)
| Routes 19, 34, 40, Olivine City, Cherrygrove City, Cianwood City, Whirl Islands, Union Cave (Surfing) Routes 12, 13, 32 (Surfing or fishing) 73 | Tentacruel | Gold | Routes 20, 21, 26, 27, 41, New Bark Town, Olivine City, Pallet Town, Vermilion City, Cinnabar Island (Surfing and Super Rod)
| Routes 12, 13, 19, 32, 34, 40, Cherrygrove City, Cianwood City, Whirl Islands, Union Cave (Surfing) 74 | Geodude | Gold | Routes 45, 46, Mt. Mortar, Dark Cave, Union Cave, Mt. Moon, Rock Tunnel
| Team Rocket HQ 75 | Graveler | Gold | Route 45, Victory Road, Dark Cave, Mt. Mortar, Silver Cave | 76 | Golem | Gold | Evolve Graveler (Trade) | 77 | Ponyta | Gold | Routes 22, 26, 27, 28, Mt. Silver | 78 | Rapidash | Gold | Route 28, Mt. Silver
| Trade Gloom in Pewter City 79 | Slowpoke | Gold | Slowpoke Well, Tohjo Falls (Walking and surfing) | 80 | Slowbro | Gold | Slowpoke Well (Surfing) | 81 | Magnemite | Gold | Routes 6, 11, 38, 39 | 82 | Magneton | Gold | Evolve Magnemite (Lv. 30) | 83 | Farfetch'd | Gold | Routes 38, 39 (Morning/Day) | |