Where to catch, #0095
Onix in HeartGold and SoulSilver: 7 places, levels 1 to 100
16 encounters by area
| Area | Method | Levels | Chance | Condition |
|---|---|---|---|---|
| Mount Silver (1F) | Walking in tall grass or a cave | 42 | 20% | Any |
| Mount Silver (1F) | Walking in tall grass or a cave | 42 | 10% | Radio off |
| Mount Silver (mountainside) | Walking in tall grass or a cave | 48 | 20% | Any |
| Mount Silver (mountainside) | Walking in tall grass or a cave | 48 | 10% | Radio off |
| Road 47 (inside Cave) | Walking in tall grass or a cave | 20 | 10% | Radio off |
| Rock Tunnel (B1F) | Walking in tall grass or a cave | 16 | 20% | Radio off |
| Safari Zone Wasteland | Walking in tall grass or a cave | 15 to 16 | 20% | Not replaced by block-based encounter; In the morning |
| Safari Zone Wasteland | Walking in tall grass or a cave | 15 to 16 | 20% | Not replaced by block-based encounter; During the day |
| Safari Zone Wasteland | Walking in tall grass or a cave | 15 to 17 | 30% | Not replaced by block-based encounter; At night |
| Union Cave (1F) | Walking in tall grass or a cave | 6 | 5% | Any |
| Union Cave (B1F) | Walking in tall grass or a cave | 8 | 10% | Any |
| Union Cave (B2F) | Walking in tall grass or a cave | 23 | 5% | Any |
| Victory Road 1 (1F) | Walking in tall grass or a cave | 34 to 36 | 15% | Any |
| Victory Road 1 (2F) | Walking in tall grass or a cave | 34 to 36 | 15% | Any |
| Victory Road 1 (3F) | Walking in tall grass or a cave | 34 to 36 | 15% | Any |
| Violet City | Trade with an npc | 1 to 100 | 100% | Give Bellsprout in a Trade |
Places
Johto Safari Zone, Mt. Silver, Rock Tunnel and 4 more
Johto Safari ZoneMt. SilverRock TunnelRoute 47Union CaveVictory RoadViolet City
Other games
Also found in 15 other games
Red and Green (Japan)Red and BlueYellowGold and SilverCrystalFireRed and LeafGreenDiamond and PearlPlatinumBlack and WhiteBlack 2 and White 2X and YOmega Ruby and Alpha SapphireUltra Sun and Ultra MoonLet's Go, Pikachu and EeveeSword and Shield