Rivers of Thailand

Basin Mekong

Ing River

แม่น้ำอิง

Rises in Phayao province and flows through Kwan Phayao lake and Chiang Rai province into the Mekong River in Chiang Khong district.

Map of the Ing RiverChiang RaiPhayao
The dark line is this river; the mid-blue lines are its named tributaries.

Key facts

Length
about 310 kmMeasured along the river on this map; official figures can differ with the method used
Source
Phayao province
Flows into
Mekong River, Chiang Rai province
Basin
Mekong
Provinces (2)
Phayao, Chiang Rai

Ing River water level today

3 automatic gauging stations on this river, highest water relative to the bank first. As of 29 Sep 2026, 19:50

StationLocationLevel (m MSL)Of bank-fullStatusMeasured
Ban Chedi Ngam BridgeMueang Phayao District, Phayao387.4185%High29 Sep 2026, 19:50
Chaing Rai 2Thoeng District, Chiang Rai361.4550%Normal29 Sep 2026, 19:50
Ing 1Chiang Khong District, Chiang Rai334.586%Critically low29 Sep 2026, 19:50

Data from the National Hydroinformatics Data Center (ThaiWater), HII, refreshed every 10 minutes

Frequently asked questions

Which provinces does the Ing River flow through?
The Ing River flows through 2 provinces: Phayao and Chiang Rai.
How long is the Ing River?
The Ing River is about 310 km long, measured along the river on this map. Official figures can differ slightly with the method used.
Where does the Ing River come from?
The Ing River rises in Phayao province.
Which river does the Ing River flow into?
The Ing River flows into the Mekong River in Chiang Rai province.
What is the Ing River water level today?
Of 3 gauging stations, 0 are over the bank and 1 have high water. Data as of 29 Sep 2026, 19:50.
What is the Ing River called in Thai?
In Thai the Ing River is แม่น้ำอิง.

Other rivers in the Mekong basin

Mekong RiverKham RiverRuak RiverLoei RiverHueang RiverSongkhram RiverOon RiverKam River