Kandal Province completely surrounds the capital Phnom Penh. The province is also a part of the greater Phnom Penh Metropolitan Area with more than a million people living in and around the province. While traveling out of Phnom Penh, the boundary between the two provinces is nearly unrecognizable.
The province consists of the typical plain wet area, covering rice fields and other agricultural plantations. The average altitude of the province is no more than 10 meters above sea level. The province also features two of the biggest rivers in the country, the Bassacand Mekong Rivers.