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    Last verified: March 2026by Experiences Team · Cambodia Experience Designers
    Mekong River in Cambodia — Cambodia Facts
    The Mekong flows 480km through Cambodia and its unique reversal fills Tonle Sap Lake. The Mekong River enters Cambodia from Laos at Stung Treng and flows 480km to the Vietnamese border,
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    Mekong River in Cambodia

    The Mekong flows 480km through Cambodia and its unique reversal fills Tonle Sap Lake

    The Mekong River enters Cambodia from Laos at Stung Treng and flows 480km to the Vietnamese border, splitting into the Bassac and Mekong proper at Phnom Penh's Chaktomuk confluence. The Tonle Sap River uniquely reverses direction during monsoon season, flowing from the Mekong into the lake. This phenomenon supports the Tonle Sap's extraordinary fishery and ecosystem. The Mekong is the lifeblood of Cambodian agriculture and transportation.

    Key Data Points

    Length in Cambodia

    480km

    Total length

    4,350km

    Chaktomuk

    Confluence of 4 rivers at PP

    Unique feature

    Tonle Sap flow reversal

    Countries

    6 (China to Vietnam)

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    • Key Data Points

    Data Sources & Official References

    Ministry of Tourism, CambodiaGeneral Department of ImmigrationWorld Bank Open Data
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