Sisak-Moslavina County is a county with a surface of 4.467,55 km2, and it is one of the largest counties in the Republic of Croatia. It takes up 7,89% of the Croatian territory. It borders with five other counties: Karlovac County, Zagreb County, Bjelovar-bilogora County, Pozega-slavonija County and Brod-posavina County and with the Republic of Bosnia and Herzegovina.
There are 456 settlements in the Sisak-Moslavina County  area with the average of 406 inhabitants. These settlements are structured into 19 units of local selfgovernment. The County has 6 Towns (Glina, Hrvatska Kostajnica, Kutina, Novska, Sisak and Petrinja) and 13 Municipalities (Donji Kukuruzari, Dvor, Gvozd, Hrvatska Dubica, Jasenovac, Lekenik, Lipovljani, Majur, Martinska Ves, Popovaca, Sunja, Topusko and Velika Ludina).

The County has a population of 185,387 (4,18% of state population) which makes it number ten out of twenty Croatian Counties together with the City of Zagreb.

The economic possibilities of the County are diverse: the water potential, oil, underground gas, cultivatable land, forests, vineyards and orchards, thermal springs, navigable rivers, natural preserves and protected natural resources, as well as the richness of flora and fauna. The area is very important in the transport system of Croatia due to its roads, rail-roads and river transport.

An important part of the economy is also vine¬growing, which came to this region with the Romans, together with agriculture and cattle-breeding.The water capacity of the County is obvious in the large number of naturally running waters and retentions, as well as underground waters.

Sisak-Moslavina County has prepared and implemented projects  on environmental protection through programme INTERREG/CARDS PHARE such as project "Watercycle" and project "Assess and protect river UNA – unique networking argument U.N.A." together with  Italian partners. The County has experiance in the planning and management actions in the field of surface waters and of hydric resources. County projects on environmental protection have ensured correct planning and management of surface water network with reference to its hydrological and management aspects.