Kanto

HeartGold HeartGold SoulSilver SoulSilver
Walking in tall grass or a cave
Route 13
At night
Radio off
+20%
L25
At night
Radio off
+20%
L25
Route 14
At night
Radio off
+20%
L25
At night
Radio off
+20%
L25
Route 15
At night
Radio off
+20%
L25
At night
Radio off
+20%
L25
Route 2
north, towards Pewter City
At night
+14%
L7–10
At night
+14%
L7
Route 2
south, towards Viridian City
At night
+14%
L7–10
At night
+14%
L7
Route 8
At night
+30%
L17–18
At night
Radio off
+10%
L17
At night
+10%
L18
Viridian Forest
At night
+15%
L7
At night
+15%
L7

Johto

HeartGold HeartGold SoulSilver SoulSilver
Walking in tall grass or a cave
Route 43
At night
Radio off
+20%
L17
At night
Radio off
+20%
L17
Route 47
Not during a swarm
At night
+20%
L35
Not during a swarm
At night
+20%
L35

Sinnoh

Platinum Platinum Diamond Diamond Pearl Pearl
Walking in tall grass or a cave
Acuity Lakefront
At night
+10%
L35
At night
+10%
L35
Great Marsh
Area 1
At night
+20%
L28–30
At night
+10%
L26
At night
+10%
L26
Great Marsh
Area 2
At night
+20%
L28–30
At night
+10%
L26
At night
+10%
L26
Great Marsh
Area 3
At night
+10%
L28
Great Marsh
Area 4
At night
+10%
L28
Lake Acuity
At night
+20%
L34–36
At night
+20%
L34–36
Lake Valor
At night
+20%
L34–36
At night
+20%
L34–36
Mt. Coronet
blizzard
At night
+10%
L39
At night
+10%
L39
At night
+10%
L39
Mt. Coronet
snowfall
At night
+10%
L39
At night
+10%
L39
At night
+10%
L39
Route 210
south, towards Solaceon Town
At night
+10%
L21
Route 210
west, towards Celestic Town
At night
+10%
L27
At night
+10%
L25
At night
+10%
L25
Route 211
east, towards Celestic Town
At night
+10%
L29
At night
+10%
L28
At night
+10%
L28
Route 216
At night
+10%
L33
At night
+10%
L33
Route 217
At night
+10%
L35
At night
+10%
L35
Sendoff Spring
At night
+20%
L53–54
At night
+20%
L53–54

Unova

Black 2 Black 2 White 2 White 2 Black Black White White
Walking in tall grass or a cave
Abundant Shrine
15%
L48–50
15%
L48–50
Nature Sanctuary
10%
L58
10%
L58
Black 2 Black 2 White 2 White 2 Black Black White White
Walking in dark grass
Abundant Shrine
15%
L58–60
15%
L58–60
Nature Sanctuary
10%
L66
10%
L66

Kalos

X X Y Y
Walking in tall grass or a cave
Route 20
30%
L48–50
30%
L48–50
X X Y Y
Walking in yellow flowers
Pokémon Village
10%
L50
10%
L50
X X Y Y
Walking in purple flowers
Pokémon Village
30%
L48–50
30%
L48–50
X X Y Y
Walking in red flowers
Route 20
10%
L50
10%
L50