Deir ez-Zor Governorate is one of the fourteen governorates of Syria. It is situated in eastern Syria, bordering Iraq. It has an area of 33,060 km² and a population of 1,239,000. The capital is Deir ez-Zor. It is divided roughly equally from northwest to southeast by the Euphrates. Most of the territory on the river's left bank is part of the Autonomous Administration of No…Deir ez-Zor Governorate is one of the fourteen governorates of Syria. It is situated in eastern Syria, bordering Iraq. It has an area of 33,060 km² and a population of 1,239,000. The capital is Deir ez-Zor. It is divided roughly equally from northwest to southeast by the Euphrates. Most of the territory on the river's left bank is part of the Autonomous Administration of North and East Syria, while that on the right bank is controlled by the Syrian government.