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18 Major River Basins in the Philippines
Rivers in the
Philippines are grouped into 18 major
river basins. Of these, the
Cagayan, the country's longest river,
[1] has the largest drainage basin, followed by the
Mindanao, the
Agusan, and the
Pampanga.
[2]
-
Abatan River, Bohol
-
Aklan River, Panay
- Anilao River, Leyte
-
Banica River, Negros Island
- Bojo River, Cebu
- Butuanon River, Cebu
-
Catarman River, Northern Samar
-
Catubig River, Northern Samar
-
Hilabangan River
-
Iloilo River, Panay
-
Inabanga River, Bohol
-
Jalaur River, Panay
- Kamputhaw River, Cebu
-
Loboc River, Bohol
- Malbasag River, Leyte
- Matutinao River, Cebu
-
Pambujan River, Northern Samar
-
Panay River, Panay
-
Silmugi River, Cebu
-
Subangdaku River, Southern Leyte
-
Ulot River, Samar
Longest rivers in the Philippines
Rank
|
River
|
Mouth
|
Length
[1] (km)
|
Length
[1] (mi)
|
Source
|
Provinces
|
1
|
Cagayan River
|
Philippine Sea
|
505
|
314
|
Caraballo Mountains
|
Cagayan,
Isabela,
Nueva Vizcaya,
Quirino
|
2
|
Rio Grande de Mindanao
|
Illana Bay
|
373
|
232
|
Pulangi River
|
Cotabato City,
Cotabato,
Sultan Kudarat,
Bukidnon,
Lanao del Sur
|
3
|
Agusan River
|
Butuan Bay
|
349
|
217
|
Tagum
|
Agusan del Norte,
Agusan del Sur,
Compostela Valley
|
4
|
Pulangi River
|
Illana Bay
|
320
|
199
|
Mangabon Range
|
Bukidnon
|
5
|
Pampanga River
|
Manila Bay
|
261
|
162
|
Sierra Madre
|
Pampanga,
Nueva Ecija,
Aurora
|
6
|
Agno River
|
Lingayen Gulf
|
206
|
128
|
Cordillera Central Mountains
|
Pangasinan,
Benguet
|
7
|
Ilagan River
|
Cagayan River
|
188
|
117
|
Sierra Madre
|
Isabela,
Nueva Vizcaya,
Aurora
|
8
|
Magat River
|
Cagayan River
|
183
|
114
|
Cordillera Central Mountains
|
Isabela,
Ifugao,
Nueva Vizcaya
|
9
|
Abra River
|
South China Sea
|
179
|
111
|
Mount Data
|
Ilocos Sur,
Abra,
Benguet
|
10
|
Abulog River
|
Philippine Sea
|
175
|
109
|
Kalinga
|
Cagayan,
Apayao
|
11
|
Chico River
|
Cagayan River
|
175
|
109
|
Mount Data
|
Cagayan,
Kalinga,
Mountain Province,
Benguet
|
12
|
Angat River
|
Manila Bay
|
153
|
95
|
Angat Dam
|
Bulacan
|
13
|
Panay River
|
Sibuyan Sea
|
151
|
94
|
Central Panay Mountain Range
|
Capiz,
Iloilo
|
14
|
Davao River
|
Davao Gulf
|
150
|
93
|
Salug River
|
Davao City,
Davao del Norte,
Bukidnon
|
15
|
Jalaur River
|
Guimaras Strait
|
122
|
76
|
Central Panay Mountain Range
|
Iloilo
|
16
|
Amburayan River
|
South China Sea
|
97
|
60
|
Cordillera Central Mountains
|
Ilocos Sur,
La Union,
Benguet
|
17
|
Tarlac River
|
Agno River
|
95
|
59
|
Mount Pinatubo
|
Tarlac
|
18
|
Bicol River
|
San Miguel Bay
|
93
|
58
|
Lake Bato
|
Camarines Sur
|
19
|
Cagayan De Oro River
|
Macajalar Bay
|
90
|
56
|
Kalatungan Mountain Range
|
Misamis Oriental,
Bukidnon,
Lanao del Norte
|
20
|
Marikina River
|
Pasig River
|
77
|
48
|
Sierra Madre
|
Metro Manila,
Rizal
|
21
|
Bued River
|
South China Sea
|
77
|
48
|
Cordillera Central Mountains
|
Pangasinan,
La Union,
Benguet
|
22
|
Padsan River
|
South China Sea
|
72
|
45
|
Cordillera Central Mountains
|
Ilocos Norte
|