The majority of the region lies in Primorje-Gorski Kotar County including the cities of Delnice, Čabar, Vrbovsko; and the municipalities of Mrkopalj, Ravna Gora, Skrad, Brod na Kupi, Fužine and Lokve. The part of the region that is in Karlovac County contains the Municipality of Bosiljevo and part of the City of Ogulin. With a population of 4454, Delnice is the largest city of the region and its center.