Slunj is a town in the mountainous part of Central Croatia, located along the important North-South route to the Adriatic Sea between Karlovac and Plitvice Lakes National Park, on the meeting of the rivers Korana and Slunjčica.

Slunj has a population of 1,674, with a total of 5,076 people in the municipality (2011)[3] and is the cultural and social center of the region of Kordun in the vicinity to Bosnia and Herzegovina.

Slunj is an underdeveloped municipality which is statistically classified as part of the First Category Area of Special State Concern by the Government of Croatia.

The castle has been developed to a fortress and served as headquarters for the commanding general of this area (see Stari grad Slunj).

During the short French governance period from 1809 until 1813, Slunj encountered an economic boom as streets, storage facilities and mills were built and as vineyards and mulberry trees were planted.

Indeed, Slunj with its romantic surroundings and the silver waterfalls of the Slunjčica represent a true nature gem astonishing even to foreigners."

Until 1918, Slunj (named SZLUIN[5]) was part of the Austrian monarchy (Kingdom of Croatia-Slavonia, Modruš-Rijeka County, after the compromise of 1867), in the Croatian Military Frontier.

Slunj is famous for its little waterfalls and the well-preserved corn mills (dating back to the 18th century) in the picturesque lower part of the town, called Rastoke (referring to the branching of the rivers).