Kanto

HeartGold HeartGold SoulSilver SoulSilver FireRed FireRed LeafGreen LeafGreen Yellow Yellow Red Red Blue Blue
Walking in tall grass or a cave
Pokémon Mansion
1F
15%
L26–28
15%
L26–28
30%
L34–37
Pokémon Mansion
2F
15%
L26–28
15%
L26–28
30%
L37–40
Pokémon Mansion
3F
15%
L26–28
15%
L26–28
30%
L40–43
Pokémon Mansion
B1F
5%
L26
5%
L26
Route 1
Not during a swarm
+20%
L2
At night
+5%
L6
Radio off
+10%
L2
At night
Radio off
+20%
L3
Not during a swarm
+20%
L2
At night
+5%
L6
Radio off
+10%
L2
At night
Radio off
+20%
L3
50%
L2–4
50%
L2–4
30%
L2–4
50%
L2–4
50%
L2–4
Route 10
20%
L18
Route 11
20%
L15
Radio off
+10%
L15
20%
L15
Radio off
+10%
L15
30%
L15–17
Route 16
30%
L18–22
30%
L18–22
25%
L23–24
30%
L18–22
30%
L18–22
Route 17
5%
L22
5%
L22
Route 18
5%
L22
5%
L22
25%
L23–24
Route 2
south, towards Viridian City
45%
L2–5
45%
L2–5
35%
L3–4
40%
L2–5
40%
L2–5
Route 22
20%
L3
At night
+35%
L3–7
Radio off
+10%
L3
At night
Radio off
+30%
L3–5
20%
L3
At night
+35%
L3–7
Radio off
+10%
L3
At night
Radio off
+30%
L3–5
45%
L2–5
45%
L2–5
10%
L3
45%
L2–4
45%
L2–4
Route 3
5%
L10
At night
+5%
L8
Not during a swarm
In the morning
+20%
L5
Not during a swarm
During the day
+20%
L5
Not during a swarm
At night
+20%
L5
In the morning
Radio off
+10%
L5
During the day
Radio off
+10%
L5
At night
Radio off
+30%
L5–8
At night
+5%
L8
Not during a swarm
In the morning
+20%
L5
Not during a swarm
During the day
+20%
L5
Not during a swarm
At night
+20%
L5
In the morning
Radio off
+10%
L5
During the day
Radio off
+10%
L5
At night
Radio off
+10%
L5
15%
L10–12
Route 4
5%
L10
In the morning
+20%
L5
During the day
+20%
L5
At night
+5%
L8
In the morning
Radio off
+10%
L5
During the day
Radio off
+10%
L5
At night
Radio off
+20%
L8
In the morning
+20%
L5
During the day
+20%
L5
At night
+25%
L5–8
In the morning
Radio off
+10%
L5
During the day
Radio off
+10%
L5
At night
Radio off
+10%
L5
35%
L8–12
35%
L8–12
15%
L10–12
40%
L8–12
40%
L8–12
Route 5
30%
L14–16
Route 6
30%
L14–16
Route 7
20%
L17
In the morning
+10%
L15–19
During the day
+5%
L19
Radio off
+10%
L17
In the morning
+5%
L15
15%
L20
Route 8
15%
L20
Route 9
Not during a swarm
+20%
L15
At night
+10%
L15
Radio off
+10%
L15
Not during a swarm
+20%
L13
At night
+10%
L15
Radio off
+10%
L13
Not during a swarm
At night
+20%
L15
At night
Radio off
+10%
L15
40%
L14–17
40%
L14–17
15%
L18
40%
L14–17
40%
L14–17
Sea Route 21
30%
L13–15
30%
L21–23
30%
L21–23

Johto

HeartGold HeartGold SoulSilver SoulSilver
Walking in tall grass or a cave
Bell Tower
10F
20%
L22–24
In the morning
+40%
L20–21
During the day
+40%
L20–21
In the morning
Radio off
+40%
L20–22
During the day
Radio off
+40%
L20–22
20%
L22–24
In the morning
+40%
L20–21
During the day
+40%
L20–21
In the morning
Radio off
+40%
L20–22
During the day
Radio off
+40%
L20–22
Bell Tower
2F
20%
L22–24
In the morning
+40%
L20–21
During the day
+40%
L20–21
In the morning
Radio off
+40%
L20–22
During the day
Radio off
+40%
L20–22
20%
L22–24
In the morning
+40%
L20–21
During the day
+40%
L20–21
In the morning
Radio off
+40%
L20–22
During the day
Radio off
+40%
L20–22
Bell Tower
3F
20%
L22–24
In the morning
+40%
L20–21
During the day
+40%
L20–21
In the morning
Radio off
+40%
L20–22
During the day
Radio off
+40%
L20–22
20%
L22–24
In the morning
+40%
L20–21
During the day
+40%
L20–21
In the morning
Radio off
+40%
L20–22
During the day
Radio off
+40%
L20–22
Bell Tower
4F
20%
L22–24
In the morning
+40%
L20–21
During the day
+40%
L20–21
In the morning
Radio off
+40%
L20–22
During the day
Radio off
+40%
L20–22
20%
L22–24
In the morning
+40%
L20–21
During the day
+40%
L20–21
In the morning
Radio off
+40%
L20–22
During the day
Radio off
+40%
L20–22
Bell Tower
5F
20%
L22–24
In the morning
+40%
L20–21
During the day
+40%
L20–21
In the morning
Radio off
+40%
L20–22
During the day
Radio off
+40%
L20–22
20%
L22–24
In the morning
+40%
L20–21
During the day
+40%
L20–21
In the morning
Radio off
+40%
L20–22
During the day
Radio off
+40%
L20–22
Bell Tower
6F
20%
L22–24
In the morning
+40%
L20–21
During the day
+40%
L20–21
In the morning
Radio off
+40%
L20–22
During the day
Radio off
+40%
L20–22
20%
L22–24
In the morning
+40%
L20–21
During the day
+40%
L20–21
In the morning
Radio off
+40%
L20–22
During the day
Radio off
+40%
L20–22
Bell Tower
7F
20%
L22–24
In the morning
+40%
L20–21
During the day
+40%
L20–21
In the morning
Radio off
+40%
L20–22
During the day
Radio off
+40%
L20–22
20%
L22–24
In the morning
+40%
L20–21
During the day
+40%
L20–21
In the morning
Radio off
+40%
L20–22
During the day
Radio off
+40%
L20–22
Bell Tower
8F
20%
L22–24
In the morning
+40%
L20–21
During the day
+40%
L20–21
In the morning
Radio off
+40%
L20–22
During the day
Radio off
+40%
L20–22
20%
L22–24
In the morning
+40%
L20–21
During the day
+40%
L20–21
In the morning
Radio off
+40%
L20–22
During the day
Radio off
+40%
L20–22
Bell Tower
9F
20%
L22–24
In the morning
+40%
L20–21
During the day
+40%
L20–21
In the morning
Radio off
+40%
L20–22
During the day
Radio off
+40%
L20–22
20%
L22–24
In the morning
+40%
L20–21
During the day
+40%
L20–21
In the morning
Radio off
+40%
L20–22
During the day
Radio off
+40%
L20–22
Burned Tower
1F
20%
L13
Radio off
+30%
L13–15
20%
L13
Radio off
+30%
L13–15
Burned Tower
B1F
20%
L14
In the morning
+10%
L16
During the day
+5%
L14
At night
+10%
L16
Radio off
+10%
L14
20%
L14
In the morning
+10%
L16
During the day
+5%
L14
At night
+10%
L16
Radio off
+10%
L14
Mt. Mortar
1F
14%
L14–16
14%
L14–16
Mt. Mortar
B1F
Radio off
+20%
L16
Radio off
+20%
L16
Mt. Mortar
Lower Cave
10%
L14
10%
L14
Route 29
5%
L4
At night
+10%
L2
In the morning
+5%
L4
During the day
+5%
L2
At night
+15%
L2–4
Route 30
At night
+30%
L3–4
At night
Radio off
+10%
L3
At night
+30%
L3–4
At night
Radio off
+10%
L3
Route 31
At night
+30%
L4–5
At night
Radio off
+10%
L4
At night
+30%
L4–5
At night
Radio off
+10%
L4
Route 32
20%
L4
In the morning
+5%
L6
During the day
+10%
L4–6
Radio off
+10%
L4
In the morning
+5%
L6
During the day
+10%
L4–6
Route 33
30%
L6–7
During the day
+5%
L4
Radio off
+10%
L7
At night
Radio off
+20%
L6
10%
L6
During the day
+5%
L4
At night
Radio off
+20%
L6
Route 34
5%
L13
Not during a swarm
+20%
L11
Radio off
+10%
L11
5%
L13
Not during a swarm
+20%
L11
Radio off
+10%
L11
Route 38
Not during a swarm
+20%
L16
At night
+10%
L16
Radio off
+10%
L16
Route 39
20%
L16
At night
+10%
L16
Radio off
+10%
L16
Route 46
5%
L4
At night
+20%
L2
Radio off
+20%
L2
At night
Radio off
+10%
L2
5%
L4
At night
+20%
L2
Radio off
+20%
L2
At night
Radio off
+10%
L2
Sprout Tower
2F
15%
L3–5
In the morning
+45%
L3–6
During the day
+45%
L3–6
In the morning
Radio off
+40%
L3–5
During the day
Radio off
+40%
L3–5
15%
L3–5
In the morning
+45%
L3–6
During the day
+45%
L3–6
In the morning
Radio off
+40%
L3–5
During the day
Radio off
+40%
L3–5
Sprout Tower
3F
15%
L3–5
In the morning
+45%
L3–6
During the day
+45%
L3–6
In the morning
Radio off
+40%
L3–5
During the day
Radio off
+40%
L3–5
15%
L3–5
In the morning
+45%
L3–6
During the day
+45%
L3–6
In the morning
Radio off
+40%
L3–5
During the day
Radio off
+40%
L3–5
Tohjo Falls
5%
L20
5%
L20
Union Cave
1F
10%
L4
30%
L4–6
Radio off
+10%
L6
Union Cave
B1F
5%
L6
25%
L6–8
Radio off
+10%
L8
Union Cave
B2F
5%
L20
5%
L20
Unknown; all Rattata
60%
L20
Radio off
+40%
L20
60%
L20
Radio off
+40%
L20

Sinnoh

Platinum Platinum Diamond Diamond Pearl Pearl
Walking in tall grass or a cave
Route 225
4%
L47
Not using PokéRadar
+1%
L47
4%
L20
Not using PokéRadar
+1%
L22
4%
L20
Not using PokéRadar
+1%
L22
Sea Route 226
4%
L47
Not using PokéRadar
+1%
L47
4%
L20
Not using PokéRadar
+1%
L22
4%
L20
Not using PokéRadar
+1%
L22

Unova

Black 2 Black 2 White 2 White 2 Black Black White White
Walking in tall grass or a cave
Castelia City
30%
L15–16
30%
L15–16
Castelia Sewers
45%
L14–17
45%
L14–17
Castelia Sewers
unknown area 38
45%
L14–17
45%
L14–17
Relic Passage
Castelia Sewers entrance
10%
L17
10%
L17
Black 2 Black 2 White 2 White 2 Black Black White White
Walking in dark grass
Castelia City
30%
L16–17
30%
L16–17