10 Largest Lakes in Indonesia – Definition of “Lake” according to the Indonesian dictionary is a very large pool of water and surrounded by land. The lake has various benefits for human life, in addition to being a source of water, the lake can also function into various economic activities such as Irrigation, Transportation, Fisheries, Hydroelectric Power (PLTA), attractions and flood control.
The biggest lake in Indonesia is Lake Toba in the Province of North Sumatra, Sumatra Island with a surface area of about 1,130km2. Inside Lake Toba there is an island called the island of Samosir. Lake Toba is also the Largest Lake in Southeast Asia. Currently Lake Toba has been developed into a tourist attraction that is able to attract domestic and foreign tourists. While the Deepest Lake in Indonesia is Lake Matano in the Province of South Sulawesi with a maximum depth of 590m. Lake Matano is also the Deepest Lake in Southeast Asia and the eighth Deepest Lake in the World.

List of 10 Largest Lakes in Indonesia
The following is a list of the 10 Largest Lakes in the World based on their surface area and the maximum depth of the lake ceme online.
- Lake Toba
Area: 1,130 km2
Maximum Depth: 529m
Lake Type: Volcanic
Province: North Sumatra
Sumatera island - Lake Towuti
Area: 561.1 km2
Maximum Depth: 203m
Lake Type: Tectonic
South Sulawesi Province
Sulawesi island - Lake Poso
Area: 323.2 km2
Maximum Depth: 450m
Lake Type: Tectonic
Province: Central Sulawesi
Sulawesi island - Lake Sentarum
Area: 275 km2
Maximum Depth: 8m
Lake Type: Floodplain
Province: West Kalimantan
Kalimantan island - Lake Matano
Area: 164.1 km2
Maximum Depth: 590m
Lake Type: Tectonic
South Sulawesi Province
Sulawesi island - Lake Jempang
Area: 150 km2 (15,000 hectares)
Maximum Depth: 6m
Lake Type: Floodplain
Province: East Kalimantan
Kalimantan island - Lake Paniai
Area: 145 km2 (14,500 hectares)
Maximum Depth: 50m
Lake Type: Tectonic
Province: Papua
Island: Papua - Lake Rombebai
Area: 137.49 km2 (13,749 hectares)
Lake Type: Floodplain
Province: Papua
Island: Papua - Lake Tempe
Area: 130 km2 (13,000 hectares)
Maximum Depth: 5m
Lake Type: Tectonic
South Sulawesi Province
Sulawesi island - Semayang Lake
Area: 130 km2 (13,000 hectares)
Maximum Depth: 6m
Lake Type: Floodplain
Province: East Kalimantan
Kalimantan island
Note:
In the list above, there are several terms of type of Lake which include Volcanic Lake, Lake Tectonic and Floodplain Lake. Below is a brief description of some of these lake types.
- Volcanic Lake is a lake formed by volcanism or volcanic activity
- Lake Tectonics is a lake formed by the decline in the face of the earth due to shifting / faulting.
- Floodplain Lake is a lake formed by rivers that flood and cover plains which are generally mud and sand. Flood Plain in Indonesian is usually called the flood plain.