Koch County is located in the southern part of Unity state and borders Guit County to the northeast,
Mayom County to the west, Rubkona County to the north, and Mayendit County to the south. It shares adjacent border with Tonj East and North County of Warrap state to the west. The county has eight Payams: Gany, Norbor, Pakur, Boaw, Ngony, Kuachlual, Mirmir and Jaak. Its estimated population for 2020 according to 2008 census by National Bureau of Statistics (NBS) stands at 73,228.
The county is predominantly inhabited by Jagei Nuer people, of which there are five distinct clans, namely Rayien, Boor, Lang, Wuot and Jidiet. Koch communities rely on livestock, agriculture, fishing and oil revenues for their livelihoods.
With the excessive rains this year, the county experienced flooding in most villages, displacing communities to seek shelters at higher grounds. This prompted an Inter-Agency flood assessment to assess the impact of the flooding in Koch County. The assessment which was led by World Relief, included the following Agencies, namely: CARE, Mercy Corps, NRC, GUNO, UNIDOR, HACO, HDC, DRC and IRC with full participation of RRC delegation. This assessment was conducted from 26th November – 3rd December 2021. The Locations visited included Kuachlual Payam, Ngony (Patit) and Thoria, which were accessed by waking crossing through the flooded waters on foot. Other planned sites for this assessment could not be reached due to distance and their inaccessibility since the access road to those areas was totally inundated. Options were given first for OCHA to lobby for air lift support, however, this did not happen due to unknown reasons. NGO staff based in such locations including Mirmir, Rier and Maar were assigned to gather information pertaining the flooding in their respective payams.