Area comparison map:

one and a half times the size of Pennsylvania; slightly smaller than Oklahoma

Land boundaries:
total: 2,530 km
[see also: Land boundaries - total country ranks ]
border countries (3): Laos 555 km, Thailand 817 km, Vietnam 1158 km

Coastline:
443 km
[see also: Coastline country ranks ]

Maritime claims:
territorial sea: 12 nm
[see also: Maritime claims - territorial sea country ranks ]
exclusive economic zone: 200 nm
[see also: Maritime claims - exclusive economic zone country ranks ]
contiguous zone: 24 nm
[see also: Maritime claims - contiguous zone country ranks ]
continental shelf: 200 nm
[see also: Maritime claims - continental shelf country ranks ]

Climate:
tropical; rainy, monsoon season (May to November); dry season (December to April); little seasonal temperature variation
More Climate Details

Terrain:
mostly low, flat plains; mountains in southwest and north

Elevation:
mean elevation: 126 m
[see also: Elevation - mean elevation country ranks ]
lowest point: Gulf of Thailand 0 m
highest point: Phnum Aoral 1,810 m

Natural resources:
oil and gas, timber, gemstones, iron ore, manganese, phosphates, hydropower potential, arable land

Land use:
agricultural land: 32.1% (2011 est.)
[see also: Land use - agricultural land country ranks ]
arable land: 22.7% (2011 est.)
[see also: Land use - arable land country ranks ]
permanent crops: 0.9% (2011 est.)
[see also: Land use - permanent crops country ranks ]
permanent pasture: 8.5% (2011 est.)
[see also: Land use - permanent pasture country ranks ]
forest: 56.5% (2011 est.)
[see also: Land use - forest country ranks ]
other: 11.4% (2011 est.)
[see also: Land use country ranks ]

Irrigated land:
3,540 sq km (2012)
[see also: Irrigated land country ranks ]

Population distribution:
population concentrated in the southeast, particularly in and around the capital of Phnom Penh; further distribution is linked closely to the Tonle Sap and Mekong Rivers

Natural hazards:
monsoonal rains (June to November); flooding; occasional droughts

Environment - current issues:
illegal logging activities throughout the country and strip mining for gems in the western region along the border with Thailand have resulted in habitat loss and declining biodiversity (in particular, destruction of mangrove swamps threatens natural fisheries); soil erosion; in rural areas, most of the population does not have access to potable water; declining fish stocks because of illegal fishing and overfishing; coastal ecosystems choked by sediment washed loose from deforested areas inland

Environment - international agreements:
party to: Biodiversity, Climate Change, Climate Change-Kyoto Protocol, Desertification, Endangered Species, Hazardous Wastes, Marine Life Conservation, Ozone Layer Protection, Ship Pollution, Tropical Timber 94, Wetlands, Whaling
signed, but not ratified: Law of the Sea

Geography - note:
a land of paddies and forests dominated by the Mekong River and Tonle Sap (Southeast Asia's largest freshwater lake)